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Battery charging problem
I'm keeping the battery from the new boat in the garage so I can put a
charger on it every so often during the winter. The battery is a Nautilus Gold Marine Deep Cycle, NG-27. Yesterday I attempted to charge the battery with an automatic charger set at 2 amps, 12 volt, deep cycle setting. The little green light began blinking as though all was going well. About 24 hours later, I noticed the little red light had come on, indicating I should check the battery. I disconnected everything. I'm thinking that 2 amps is not enough to charge the battery, and that I should try it at 10 amps. But, I don't want to damage a brand new, never used battery! Ideas anyone? |
Battery charging problem
John H. wrote:
I'm keeping the battery from the new boat in the garage so I can put a charger on it every so often during the winter. The battery is a Nautilus Gold Marine Deep Cycle, NG-27. Yesterday I attempted to charge the battery with an automatic charger set at 2 amps, 12 volt, deep cycle setting. The little green light began blinking as though all was going well. About 24 hours later, I noticed the little red light had come on, indicating I should check the battery. I disconnected everything. I'm thinking that 2 amps is not enough to charge the battery, and that I should try it at 10 amps. But, I don't want to damage a brand new, never used battery! Ideas anyone? An inexpensive "trickle" charger can do more damage than good. You really want to charge the battery with a smart charger, that will turn itself on and off as needed. |
Battery charging problem
"John H." wrote in message ... I'm keeping the battery from the new boat in the garage so I can put a charger on it every so often during the winter. The battery is a Nautilus Gold Marine Deep Cycle, NG-27. Yesterday I attempted to charge the battery with an automatic charger set at 2 amps, 12 volt, deep cycle setting. The little green light began blinking as though all was going well. About 24 hours later, I noticed the little red light had come on, indicating I should check the battery. I disconnected everything. I'm thinking that 2 amps is not enough to charge the battery, and that I should try it at 10 amps. But, I don't want to damage a brand new, never used battery! Ideas anyone? My understanding is that these cheap smart chargers merely change the set/reset voltages depending on your switch settings and battery voltage. Your battery may not be able to charge to level that satisfys the charger. Try a different charger or do a few charge/discharge cycles if the battery is brand new. If the battery has gone flat, you may have to desulfate it. There is a lot of information about battery charging on the Surette website and other sites. |
Battery charging problem
On Thu, 27 Dec 2007 06:35:13 -0500, John H.
wrote: I'm keeping the battery from the new boat in the garage so I can put a charger on it every so often during the winter. The battery is a Nautilus Gold Marine Deep Cycle, NG-27. Yesterday I attempted to charge the battery with an automatic charger set at 2 amps, 12 volt, deep cycle setting. The little green light began blinking as though all was going well. About 24 hours later, I noticed the little red light had come on, indicating I should check the battery. I disconnected everything. I'm thinking that 2 amps is not enough to charge the battery, and that I should try it at 10 amps. But, I don't want to damage a brand new, never used battery! Ideas anyone? Couple of things come to mind. First is if the battery is indeed "good". I've bought new batteries that weren't worth the powder to blow to hell. Second, read the manual for the charger. That blinking green light doesn't sound right to me - as if it's a trouble code. Third, is the charger good? The chargers I have all work fine at 2 amps and have three LEDs to indicate status - red for trouble, yellow for charging and green for finished. |
Battery charging problem
On Thu, 27 Dec 2007 06:58:49 -0500, "Reginald P. Smithers III"
[email protected] wrote: John H. wrote: I'm keeping the battery from the new boat in the garage so I can put a charger on it every so often during the winter. The battery is a Nautilus Gold Marine Deep Cycle, NG-27. Yesterday I attempted to charge the battery with an automatic charger set at 2 amps, 12 volt, deep cycle setting. The little green light began blinking as though all was going well. About 24 hours later, I noticed the little red light had come on, indicating I should check the battery. I disconnected everything. I'm thinking that 2 amps is not enough to charge the battery, and that I should try it at 10 amps. But, I don't want to damage a brand new, never used battery! Ideas anyone? An inexpensive "trickle" charger can do more damage than good. You really want to charge the battery with a smart charger, that will turn itself on and off as needed. No, mine's an older version of this one: http://tinyurl.com/24e7r7 It's a 125/15/2 fully automatic. I said 10 amps earlier, but the actual is 15. |
Battery charging problem
On Thu, 27 Dec 2007 12:20:50 GMT, Short Wave Sportfishing
wrote: On Thu, 27 Dec 2007 06:35:13 -0500, John H. wrote: I'm keeping the battery from the new boat in the garage so I can put a charger on it every so often during the winter. The battery is a Nautilus Gold Marine Deep Cycle, NG-27. Yesterday I attempted to charge the battery with an automatic charger set at 2 amps, 12 volt, deep cycle setting. The little green light began blinking as though all was going well. About 24 hours later, I noticed the little red light had come on, indicating I should check the battery. I disconnected everything. I'm thinking that 2 amps is not enough to charge the battery, and that I should try it at 10 amps. But, I don't want to damage a brand new, never used battery! Ideas anyone? Couple of things come to mind. First is if the battery is indeed "good". I've bought new batteries that weren't worth the powder to blow to hell. Second, read the manual for the charger. That blinking green light doesn't sound right to me - as if it's a trouble code. Third, is the charger good? The chargers I have all work fine at 2 amps and have three LEDs to indicate status - red for trouble, yellow for charging and green for finished. Schumaker instructions that came with the charger don't even mention the lights! Mine has only two, green and red. The green normally blinks while charging and glows continuously when the battery's charged. I just checked it after having it on the motorcycle battery. The green light blinked when I connected it, but had a steady glow when I just checked it. The motorcycle battery wasn't in a very discharged state, so the charger took only an hour or so to top it off. I'll try setting the charger at the 15 amp setting and see what happens. |
Battery charging problem
On Thu, 27 Dec 2007 08:04:36 -0500, John H.
wrote: On Thu, 27 Dec 2007 12:20:50 GMT, Short Wave Sportfishing wrote: On Thu, 27 Dec 2007 06:35:13 -0500, John H. wrote: I'm keeping the battery from the new boat in the garage so I can put a charger on it every so often during the winter. The battery is a Nautilus Gold Marine Deep Cycle, NG-27. Yesterday I attempted to charge the battery with an automatic charger set at 2 amps, 12 volt, deep cycle setting. The little green light began blinking as though all was going well. About 24 hours later, I noticed the little red light had come on, indicating I should check the battery. I disconnected everything. I'm thinking that 2 amps is not enough to charge the battery, and that I should try it at 10 amps. But, I don't want to damage a brand new, never used battery! Ideas anyone? Couple of things come to mind. First is if the battery is indeed "good". I've bought new batteries that weren't worth the powder to blow to hell. Second, read the manual for the charger. That blinking green light doesn't sound right to me - as if it's a trouble code. Third, is the charger good? The chargers I have all work fine at 2 amps and have three LEDs to indicate status - red for trouble, yellow for charging and green for finished. Schumaker instructions that came with the charger don't even mention the lights! Mine has only two, green and red. The green normally blinks while charging and glows continuously when the battery's charged. I just checked it after having it on the motorcycle battery. The green light blinked when I connected it, but had a steady glow when I just checked it. The motorcycle battery wasn't in a very discharged state, so the charger took only an hour or so to top it off. I'll try setting the charger at the 15 amp setting and see what happens. Hmmmm - it could be that you have a bad battery - or one that wasn't completely charged on delivery. I've seen that happen before. |
Battery charging problem
Short Wave Sportfishing wrote:
On Thu, 27 Dec 2007 08:04:36 -0500, John H. wrote: On Thu, 27 Dec 2007 12:20:50 GMT, Short Wave Sportfishing wrote: On Thu, 27 Dec 2007 06:35:13 -0500, John H. wrote: I'm keeping the battery from the new boat in the garage so I can put a charger on it every so often during the winter. The battery is a Nautilus Gold Marine Deep Cycle, NG-27. Yesterday I attempted to charge the battery with an automatic charger set at 2 amps, 12 volt, deep cycle setting. The little green light began blinking as though all was going well. About 24 hours later, I noticed the little red light had come on, indicating I should check the battery. I disconnected everything. I'm thinking that 2 amps is not enough to charge the battery, and that I should try it at 10 amps. But, I don't want to damage a brand new, never used battery! Ideas anyone? Couple of things come to mind. First is if the battery is indeed "good". I've bought new batteries that weren't worth the powder to blow to hell. Second, read the manual for the charger. That blinking green light doesn't sound right to me - as if it's a trouble code. Third, is the charger good? The chargers I have all work fine at 2 amps and have three LEDs to indicate status - red for trouble, yellow for charging and green for finished. Schumaker instructions that came with the charger don't even mention the lights! Mine has only two, green and red. The green normally blinks while charging and glows continuously when the battery's charged. I just checked it after having it on the motorcycle battery. The green light blinked when I connected it, but had a steady glow when I just checked it. The motorcycle battery wasn't in a very discharged state, so the charger took only an hour or so to top it off. I'll try setting the charger at the 15 amp setting and see what happens. Hmmmm - it could be that you have a bad battery - or one that wasn't completely charged on delivery. I've seen that happen before. It pays to buy from a reputable dealer who actually checks out the boat BEFORE the customer takes delivery. |
Battery charging problem
On Thu, 27 Dec 2007 08:29:25 -0500, HK wrote:
Short Wave Sportfishing wrote: On Thu, 27 Dec 2007 08:04:36 -0500, John H. wrote: On Thu, 27 Dec 2007 12:20:50 GMT, Short Wave Sportfishing wrote: On Thu, 27 Dec 2007 06:35:13 -0500, John H. wrote: I'm keeping the battery from the new boat in the garage so I can put a charger on it every so often during the winter. The battery is a Nautilus Gold Marine Deep Cycle, NG-27. Yesterday I attempted to charge the battery with an automatic charger set at 2 amps, 12 volt, deep cycle setting. The little green light began blinking as though all was going well. About 24 hours later, I noticed the little red light had come on, indicating I should check the battery. I disconnected everything. I'm thinking that 2 amps is not enough to charge the battery, and that I should try it at 10 amps. But, I don't want to damage a brand new, never used battery! Ideas anyone? Couple of things come to mind. First is if the battery is indeed "good". I've bought new batteries that weren't worth the powder to blow to hell. Second, read the manual for the charger. That blinking green light doesn't sound right to me - as if it's a trouble code. Third, is the charger good? The chargers I have all work fine at 2 amps and have three LEDs to indicate status - red for trouble, yellow for charging and green for finished. Schumaker instructions that came with the charger don't even mention the lights! Mine has only two, green and red. The green normally blinks while charging and glows continuously when the battery's charged. I just checked it after having it on the motorcycle battery. The green light blinked when I connected it, but had a steady glow when I just checked it. The motorcycle battery wasn't in a very discharged state, so the charger took only an hour or so to top it off. I'll try setting the charger at the 15 amp setting and see what happens. Hmmmm - it could be that you have a bad battery - or one that wasn't completely charged on delivery. I've seen that happen before. It pays to buy from a reputable dealer who actually checks out the boat BEFORE the customer takes delivery. If I had desired the boat to be checked out, it would have been. It was *my* choice to leave it be until the spring. The dealer *did* check to make sure I had a transom capable of stopping a 6" wave. |
Battery charging problem
On Thu, 27 Dec 2007 13:22:44 GMT, Short Wave Sportfishing
wrote: On Thu, 27 Dec 2007 08:04:36 -0500, John H. wrote: On Thu, 27 Dec 2007 12:20:50 GMT, Short Wave Sportfishing wrote: On Thu, 27 Dec 2007 06:35:13 -0500, John H. wrote: I'm keeping the battery from the new boat in the garage so I can put a charger on it every so often during the winter. The battery is a Nautilus Gold Marine Deep Cycle, NG-27. Yesterday I attempted to charge the battery with an automatic charger set at 2 amps, 12 volt, deep cycle setting. The little green light began blinking as though all was going well. About 24 hours later, I noticed the little red light had come on, indicating I should check the battery. I disconnected everything. I'm thinking that 2 amps is not enough to charge the battery, and that I should try it at 10 amps. But, I don't want to damage a brand new, never used battery! Ideas anyone? Couple of things come to mind. First is if the battery is indeed "good". I've bought new batteries that weren't worth the powder to blow to hell. Second, read the manual for the charger. That blinking green light doesn't sound right to me - as if it's a trouble code. Third, is the charger good? The chargers I have all work fine at 2 amps and have three LEDs to indicate status - red for trouble, yellow for charging and green for finished. Schumaker instructions that came with the charger don't even mention the lights! Mine has only two, green and red. The green normally blinks while charging and glows continuously when the battery's charged. I just checked it after having it on the motorcycle battery. The green light blinked when I connected it, but had a steady glow when I just checked it. The motorcycle battery wasn't in a very discharged state, so the charger took only an hour or so to top it off. I'll try setting the charger at the 15 amp setting and see what happens. Hmmmm - it could be that you have a bad battery - or one that wasn't completely charged on delivery. I've seen that happen before. I went to the Schumacher site and found a FAQ. One of the responses had to do with the deep cycle battery, and it suggested setting the charger for a regular 12 volt. I've done that, and set it at a 15 amp rate. I'll get back and let you know what happened. Thanks for the help! |
Battery charging problem
"John H." wrote in message ... I'm keeping the battery from the new boat in the garage so I can put a charger on it every so often during the winter. The battery is a Nautilus Gold Marine Deep Cycle, NG-27. Yesterday I attempted to charge the battery with an automatic charger set at 2 amps, 12 volt, deep cycle setting. The little green light began blinking as though all was going well. About 24 hours later, I noticed the little red light had come on, indicating I should check the battery. I disconnected everything. I'm thinking that 2 amps is not enough to charge the battery, and that I should try it at 10 amps. But, I don't want to damage a brand new, never used battery! Ideas anyone? If your charger is a "smart charger" meaning it will automatically go through a 3 stage charging process, the battery may be too low initially and the smart charger thinks there is a problem. It's a characteristic of the charger. A way to get around this is to initially use an old fashioned, voltage only charger to bring the battery up to a level where the smart charger can do it's thing. Other possibilities is having the charger set for the wrong type of battery. Many have settings for regular lead-acid, deep cycle, AGM, etc. This is one reason I leave a good, "float" type maintainer on the battery all winter, not to be confused with a "trickle" charger. Eisboch |
Battery charging problem
"John H." wrote in message ... I'm thinking that 2 amps is not enough to charge the battery, and that I should try it at 10 amps. But, I don't want to damage a brand new, never used battery! Ideas anyone? One other thing. If the battery is low on charge (which it could very well be if it is brand new but has been sitting around) the initial charge should be at a lower, slower rate ... the 2 amp setting, not the 10 or 15 amp. There may not be enough activity going on in it to take the higher charge rate. Batteries are weird. Eisboch |
Battery charging problem
On Thu, 27 Dec 2007 09:37:16 -0500, "Eisboch" wrote:
"John H." wrote in message .. . I'm thinking that 2 amps is not enough to charge the battery, and that I should try it at 10 amps. But, I don't want to damage a brand new, never used battery! Ideas anyone? One other thing. If the battery is low on charge (which it could very well be if it is brand new but has been sitting around) the initial charge should be at a lower, slower rate ... the 2 amp setting, not the 10 or 15 amp. There may not be enough activity going on in it to take the higher charge rate. Batteries are weird. Eisboch I changed it from deep cycle setting to the regular setting and that worked. At a 15amp rate, it took about an hour for the flashing grreen to become continuous, indicating a full charge. Thanks to all for the tips/advice. |
Battery charging problem
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Battery charging problem
On Thu, 27 Dec 2007 16:01:11 GMT, wrote:
On Thu, 27 Dec 2007 10:38:06 -0500, John H. wrote: On Thu, 27 Dec 2007 15:29:25 GMT, wrote: On Thu, 27 Dec 2007 06:35:13 -0500, John H. wrote: I'm keeping the battery from the new boat in the garage so I can put a charger on it every so often during the winter. The battery is a Nautilus Gold Marine Deep Cycle, NG-27. Yesterday I attempted to charge the battery with an automatic charger set at 2 amps, 12 volt, deep cycle setting. The little green light began blinking as though all was going well. About 24 hours later, I noticed the little red light had come on, indicating I should check the battery. I disconnected everything. I'm thinking that 2 amps is not enough to charge the battery, and that I should try it at 10 amps. But, I don't want to damage a brand new, never used battery! Ideas anyone? Is this a Schumacher smart charger? If so, a BLINKING green light indicates the battery is sulfated and the charger is attempting to correct the problem. If it goes to red after that, I would suggest disconnecting the charger, checking electrolyte levels in all cells and then trying to charge it again. Actually, it's a Diehard made by Schumacher. The green light has always blinked when hooked up to any battery, unless the battery was totally shot and the red light never went off. I saw the link you posted. That's not a 3-stage "smart charger", which works far better on deep cycle batteries. As people have pointed out in the past in various threads, charging a deep cycle battery is not just a simple matter of cramming a bunch of volts and amps into it. It's a process with stages. The charger you have is really not going to properly and fully charge a deep cycle battery, even though it has a switch that says it can. Gotcha. Thanks. Maybe I'll take a ride to Wal-Mart, but promise not to tell Harry. I don't want any long winded speeches. |
Battery charging problem
HK wrote: It pays to buy from a reputable dealer who actually checks out the boat BEFORE the customer takes delivery. Harry, I've have to agree that the battery could be bogus. Most batteries come pre"charged" whick is a good deal, but I've always put a new battery on a charger for at least a half hour before installation. I've had brand new Delco batteries be dead right out of the box. Some would crank a few times then just "quit". conclusion: seperated cell. Just because it's NEW doesn't mean it's going to be "good". That's what warrenties are for. |
Battery charging problem
Tim wrote:
HK wrote: It pays to buy from a reputable dealer who actually checks out the boat BEFORE the customer takes delivery. Harry, I've have to agree that the battery could be bogus. Most batteries come pre"charged" whick is a good deal, but I've always put a new battery on a charger for at least a half hour before installation. I've had brand new Delco batteries be dead right out of the box. Some would crank a few times then just "quit". conclusion: seperated cell. Just because it's NEW doesn't mean it's going to be "good". That's what warrenties are for. Did I post anything contrary? My dealer checked everything out prior to letting me climb aboard and point out where I wanted X, Y, and Z installed. That included testing the batteries. |
Battery charging problem
On Thu, 27 Dec 2007 16:54:38 GMT, wrote:
On Thu, 27 Dec 2007 11:16:29 -0500, John H. wrote: On Thu, 27 Dec 2007 15:45:49 GMT, wrote: On Thu, 27 Dec 2007 07:23:43 -0500, John H. wrote: On Thu, 27 Dec 2007 06:58:49 -0500, "Reginald P. Smithers III" [email protected] wrote: John H. wrote: I'm keeping the battery from the new boat in the garage so I can put a charger on it every so often during the winter. The battery is a Nautilus Gold Marine Deep Cycle, NG-27. Yesterday I attempted to charge the battery with an automatic charger set at 2 amps, 12 volt, deep cycle setting. The little green light began blinking as though all was going well. About 24 hours later, I noticed the little red light had come on, indicating I should check the battery. I disconnected everything. I'm thinking that 2 amps is not enough to charge the battery, and that I should try it at 10 amps. But, I don't want to damage a brand new, never used battery! Ideas anyone? An inexpensive "trickle" charger can do more damage than good. You really want to charge the battery with a smart charger, that will turn itself on and off as needed. No, mine's an older version of this one: http://tinyurl.com/24e7r7 It's a 125/15/2 fully automatic. I said 10 amps earlier, but the actual is 15. That's not a 3 stage smart charger. You will have a tough time properly charging a deep cycle battery using that. Walmart sells a smaller Schumacher "smart charger" for about $75 that is actully pretty good. It will also properly charge AGM's and Gell Cells if you ever have the need. I think you may be correct. This charger has been around for a while. Maybe I owe myself a present for being a good boy. I'm thinking of something like this: http://tinyurl.com/2nbjqy But, I don't see anything there about '3 stage smart charger'. Here's the one you want. As I said, Walmart has this one for about $75 or maybe a bit less. http://store.schumachermart.com/ssc-1000a.html I'll have one before the day is out. Thanks! (And thanks to the Fed for printing money.) |
Battery charging problem
HK wrote: Tim wrote: HK wrote: It pays to buy from a reputable dealer who actually checks out the boat BEFORE the customer takes delivery. Harry, I've have to agree that the battery could be bogus. Most batteries come pre"charged" whick is a good deal, but I've always put a new battery on a charger for at least a half hour before installation. I've had brand new Delco batteries be dead right out of the box. Some would crank a few times then just "quit". conclusion: seperated cell. Just because it's NEW doesn't mean it's going to be "good". That's what warrenties are for. Did I post anything contrary? My dealer checked everything out prior to letting me climb aboard and point out where I wanted X, Y, and Z installed. That included testing the batteries. No Harry, I never said anything like that. But stuff does just happen, and like Richard said that batteries are strange things. I know I jumped intot he conversation with out reading the full thread. Glad it's ok for you John. and yes, in cold weather the electrons don't want to move very quickly. the colder the battery the longer the time and more amperage needed. |
Battery charging problem
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Battery charging problem
Eisboch wrote:
"John H." wrote in message ... I'm keeping the battery from the new boat in the garage so I can put a charger on it every so often during the winter. The battery is a Nautilus Gold Marine Deep Cycle, NG-27. Yesterday I attempted to charge the battery with an automatic charger set at 2 amps, 12 volt, deep cycle setting. The little green light began blinking as though all was going well. About 24 hours later, I noticed the little red light had come on, indicating I should check the battery. I disconnected everything. I'm thinking that 2 amps is not enough to charge the battery, and that I should try it at 10 amps. But, I don't want to damage a brand new, never used battery! Ideas anyone? If your charger is a "smart charger" meaning it will automatically go through a 3 stage charging process, the battery may be too low initially and the smart charger thinks there is a problem. It's a characteristic of the charger. A way to get around this is to initially use an old fashioned, voltage only charger to bring the battery up to a level where the smart charger can do it's thing. Other possibilities is having the charger set for the wrong type of battery. Many have settings for regular lead-acid, deep cycle, AGM, etc. This is one reason I leave a good, "float" type maintainer on the battery all winter, not to be confused with a "trickle" charger. Eisboch If I am not mistaken, the smart charger doesn't come on until the battery has lost at least 20% of it's charge. |
Battery charging problem
"John H." wrote in message ... I think you may be correct. This charger has been around for a while. *Maybe I owe myself a present for being a good boy*. I'm thinking of something like this: http://tinyurl.com/2nbjqy But, I don't see anything there about '3 stage smart charger'. You gotta get of that crack habit. |
Battery charging problem
"John H." wrote in message ... On Thu, 27 Dec 2007 15:45:49 GMT, wrote: That's not a 3 stage smart charger. You will have a tough time properly charging a deep cycle battery using that. Walmart sells a smaller Schumacher "smart charger" for about $75 that is actully pretty good. It will also properly charge AGM's and Gell Cells if you ever have the need. I think you may be correct. This charger has been around for a while. Maybe I owe myself a present for being a good boy. I'm thinking of something like this: http://tinyurl.com/2nbjqy But, I don't see anything there about '3 stage smart charger'. A true 3 stage smart charger automatically follows an ideal charge profile for a battery. The first stage is a "Bulk" charge mode and the voltage is in excess of 14.5 volts. Once the battery starts building it's capacity, the charger switches to an "Absorption" mode were the voltage is dropped to below a lead acid boil over rate (14.4 volts). After an extended cycle in this mode the charger switches to a "Float mode whereby it will automatically maintain the full charge. Some smart chargers also have an automatic "De sulfate" mode whereby if it senses that the battery is not taking a charge due to the plates being sulfated, it cranks the voltage up to 15 or 16 volts for a period of time, attempting to "burn off" the sulfate from the plates. It then retries the bulk charge mode and if the battery now responds, it continues with the stages. The little smart "Maintainers" also operate in different ways. Some simply maintain a voltage below the boil over threshold. Others cycle off every once in a while, allowing the battery to naturally discharge, then kick back on to charge it back up. Eisboch |
Battery charging problem
"Reginald P. Smithers III" [email protected] wrote in message ... Eisboch wrote: "John H." wrote in message ... I'm keeping the battery from the new boat in the garage so I can put a charger on it every so often during the winter. The battery is a Nautilus Gold Marine Deep Cycle, NG-27. Yesterday I attempted to charge the battery with an automatic charger set at 2 amps, 12 volt, deep cycle setting. The little green light began blinking as though all was going well. About 24 hours later, I noticed the little red light had come on, indicating I should check the battery. I disconnected everything. I'm thinking that 2 amps is not enough to charge the battery, and that I should try it at 10 amps. But, I don't want to damage a brand new, never used battery! Ideas anyone? If your charger is a "smart charger" meaning it will automatically go through a 3 stage charging process, the battery may be too low initially and the smart charger thinks there is a problem. It's a characteristic of the charger. A way to get around this is to initially use an old fashioned, voltage only charger to bring the battery up to a level where the smart charger can do it's thing. Other possibilities is having the charger set for the wrong type of battery. Many have settings for regular lead-acid, deep cycle, AGM, etc. This is one reason I leave a good, "float" type maintainer on the battery all winter, not to be confused with a "trickle" charger. Eisboch If I am not mistaken, the smart charger doesn't come on until the battery has lost at least 20% of it's charge. It also won't come on if the battery has dropped below a certain voltage representing an approximate 80 percent discharge. It thinks the battery is shot or has one or more dead cells. My experience has been that if you think the battery is still good, hook it up to an old fashioned conventional charger (non-smart) for about 15 minutes, then try the smart charger again. Usually it works. Eisboch |
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