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#1
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posted to rec.boats.cruising
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![]() "Capt. JG" wrote in message easolutions... The folks at the C.T. told me to bring in the batteries and they will put a 30amp on them and have them topped up in minutes but I did some reading and that can't be too good for the deepcycle batteries. I don't think one charge like this would do much harm if you decide to have them do it. Now's that's the voice of experience! Ignore any advice from this knucklehead he's blowing smoke from his ass. |
#2
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posted to rec.boats.cruising
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"Mac Donald" wrote in news:2tn979.6g0.19.1
@news.alt.net: "Capt. JG" wrote in message easolutions... The folks at the C.T. told me to bring in the batteries and they will put a 30amp on them and have them topped up in minutes but I did some reading and that can't be too good for the deepcycle batteries. I don't think one charge like this would do much harm if you decide to have them do it. Now's that's the voice of experience! Ignore any advice from this knucklehead he's blowing smoke from his ass. Mac? Don't you have 4 500A alternators in parallel so you can charge the house batteries in 5 minutes, like some boats I know?....(c;] (It's not funny...I actually saw one like this!....with kids aboard going offshore!) -- ----- Larry If a man goes way out into the woods all alone and says something, is it still wrong, even though no woman hears him? |
#3
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On Tue, 23 Jun 2009 15:58:11 +0000, Larry wrote:
Mac? Don't you have 4 500A alternators in parallel so you can charge the house batteries in 5 minutes, like some boats I know?....(c;] We have a pair of 250 amp alternators. They won't charge the batteries in 5 minutes, but at half power they will drive a 2500 watt inverter at full output. http://www.alternatorparts.com/Extreme%20Duty%20Dual%20Rectifier%20CS-144%20type.htm |
#4
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posted to rec.boats.cruising
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On Tue, 23 Jun 2009 12:12:42 -0400, Wayne.B
wrote: On Tue, 23 Jun 2009 15:58:11 +0000, Larry wrote: Mac? Don't you have 4 500A alternators in parallel so you can charge the house batteries in 5 minutes, like some boats I know?....(c;] We have a pair of 250 amp alternators. They won't charge the batteries in 5 minutes, but at half power they will drive a 2500 watt inverter at full output. http://www.alternatorparts.com/Extreme%20Duty%20Dual%20Rectifier%20CS-144%20type.htm Without a battery that would be in the region of 200 amps, not considering system loss. Cheers, Bruce (bruceinbangkokatgmaildotcom) |
#5
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posted to rec.boats.cruising
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On Wed, 24 Jun 2009 16:15:09 +0700, Bruce In Bangkok
wrote: We have a pair of 250 amp alternators. They won't charge the batteries in 5 minutes, but at half power they will drive a 2500 watt inverter at full output. http://www.alternatorparts.com/Extreme%20Duty%20Dual%20Rectifier%20CS-144%20type.htm Without a battery that would be in the region of 200 amps, not considering system loss. Yes, and there are losses, even with big cables and heavy duty lugs. |
#6
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posted to rec.boats.cruising
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On Tue, 23 Jun 2009 15:58:11 +0000, Larry wrote:
"Mac Donald" wrote in news:2tn979.6g0.19.1 : "Capt. JG" wrote in message easolutions... The folks at the C.T. told me to bring in the batteries and they will put a 30amp on them and have them topped up in minutes but I did some reading and that can't be too good for the deepcycle batteries. I don't think one charge like this would do much harm if you decide to have them do it. Now's that's the voice of experience! Ignore any advice from this knucklehead he's blowing smoke from his ass. Mac? Don't you have 4 500A alternators in parallel so you can charge the house batteries in 5 minutes, like some boats I know?....(c;] (It's not funny...I actually saw one like this!....with kids aboard going offshore!) How much voltage do you need to pump 2,000 amps into a battery? Cheers, Bruce (bruceinbangkokatgmaildotcom) |
#7
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posted to rec.boats.cruising
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On Wed, 24 Jun 2009 16:10:49 +0700, Bruce In Bangkok
wrote: Mac? Don't you have 4 500A alternators in parallel so you can charge the house batteries in 5 minutes, like some boats I know?....(c;] (It's not funny...I actually saw one like this!....with kids aboard going offshore!) How much voltage do you need to pump 2,000 amps into a battery? More to the point, how much battery do you need? I'd estimate about 40 pairs of golf cart batts at about 120 lbs per pair. Maybe the question is "how much boat do you need" ? |
#8
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posted to rec.boats.cruising
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![]() "Bruce In Bangkok" wrote: How much voltage do you need to pump 2,000 amps into a battery? How muich time do you have? Lew |
#9
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posted to rec.boats.cruising
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On Wed, 24 Jun 2009 18:43:20 GMT, "Lew Hodgett"
wrote: "Bruce In Bangkok" wrote: How much voltage do you need to pump 2,000 amps into a battery? How muich time do you have? Lew What? Amps have nothing to do with time. Cheers, Bruce (bruceinbangkokatgmaildotcom) |
#10
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posted to rec.boats.cruising
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Bruce In Bangkok wrote in
: What? Amps have nothing to do with time. Amps X Hours X charging efficiency as a decimal = AH Amps have a lot to do with time.... -- ----- Larry If a man goes way out into the woods all alone and says something, is it still wrong, even though no woman hears him? |
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