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#11
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About those batteries? oops - forgot URL
here it is:
http://www.alliedbattery.com/6%20V%20DC.htm Chuck Bollinger wrote: Here's the reference you want in the Pacific NW. 6-volt batteries which you mount in series - two for 12V with great amp-hours. Use two banks with a switch. For us, it replaces a generator at a quiet anchorage using an inverter. Once we get underway we recharge with a cruise generator. And I use a CPAP machine all night. Plenty of power. And all the guys at this place have been to the Trojan factory to learn batteries from the box up. Schoonertrash wrote: The old boat had a couple of 4D's at 220 Amp each. The new boat is currently using fairly standard 12 volt RV size batteries at 110 ratings each. I'm thinking of going to the 6 volt variety as I have to go back up to or near 400 Amp hours of storage. Which size, which voltage, and why? If six volt are the fairly inexpensive one's from Costco (golf cart batteries)useful or should I just spend the money at West Marine? Tanks Michael |
#12
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About those batteries?
The Trojan T105's are frequently found discounted at Battery Warehouses and
sales points. I got 4 of them at $65 each from a battery supplier in Minneapolis. Larry DeMers Kelton Joyner wrote: Trojan battery has the following deep cycle batteries suitable for house batteries The J250G (220 Ahr @ 20 hr rate) $100.95 ea. plus any taxes The J305G (285 Ahr @ 20 hr rate) $130.95 ea. plus any taxes The J305HC (335 Ahr @ 20 hr rate) $169.95 ea. plus any taxes http://www.trojanbattery.com/productspecsguide.pdf The West Marine 6V battery is a Trojan T-105 (225 Ahr @ 20 hr rate). Catalog price is 109.99 plus tax. West Marine catalog conservatively rates battery @ 215 Ahrs Kelton s/v Isle Escape Schoonertrash wrote: The old boat had a couple of 4D's at 220 Amp each. The new boat is currently using fairly standard 12 volt RV size batteries at 110 ratings each. I'm thinking of going to the 6 volt variety as I have to go back up to or near 400 Amp hours of storage. Which size, which voltage, and why? If six volt are the fairly inexpensive one's from Costco (golf cart batteries)useful or should I just spend the money at West Marine? Tanks Michael |
#13
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About those batteries?
The Trojan T105's are frequently found discounted at Battery Warehouses and
sales points. I got 4 of them at $65 each from a battery supplier in Minneapolis. Larry DeMers Kelton Joyner wrote: Trojan battery has the following deep cycle batteries suitable for house batteries The J250G (220 Ahr @ 20 hr rate) $100.95 ea. plus any taxes The J305G (285 Ahr @ 20 hr rate) $130.95 ea. plus any taxes The J305HC (335 Ahr @ 20 hr rate) $169.95 ea. plus any taxes http://www.trojanbattery.com/productspecsguide.pdf The West Marine 6V battery is a Trojan T-105 (225 Ahr @ 20 hr rate). Catalog price is 109.99 plus tax. West Marine catalog conservatively rates battery @ 215 Ahrs Kelton s/v Isle Escape Schoonertrash wrote: The old boat had a couple of 4D's at 220 Amp each. The new boat is currently using fairly standard 12 volt RV size batteries at 110 ratings each. I'm thinking of going to the 6 volt variety as I have to go back up to or near 400 Amp hours of storage. Which size, which voltage, and why? If six volt are the fairly inexpensive one's from Costco (golf cart batteries)useful or should I just spend the money at West Marine? Tanks Michael |
#14
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About those batteries?
Schoonertrash wrote:
The old boat had a couple of 4D's at 220 Amp each. The new boat is currently using fairly standard 12 volt RV size batteries at 110 ratings each. I'm guessing Group 31s? I'm thinking of going to the 6 volt variety as I have to go back up to or near 400 Amp hours of storage. Which size, which voltage, and why? If six volt are the fairly inexpensive one's from Costco (golf cart batteries)useful or should I just spend the money at West Marine? I'm not saying *don't* spend the money at West Marine, although I personally would not. At WM you do get a better guarantee than you're likely to get at any local battery discounter. But before you go seriously shopping for new batteries, check into more info. Here are some links i found helpful when pondering the same question earlier this year http://bart.ccis.com/home/mnemeth/12volt/12volt.htm http://www.marine-electronics.net/te..._faq/b_faq.htm And in the end, since we already had the wiring & the cases for two Grp 31 batteries, I bought two Excide Grp 31 dual purpose (700 CCA and 115 AH each) at Agri-Supply http://www.agri-supply.com/ They have a big outlet which is not too far off our track from home down to the boat. Unfortunately, the particular batteries I bought were at the end of their shelf life and have not proved very satisfactory. Furthermore, they are at or below the minimum bank we need for life a-cruising with our electrically profligate lifestyle. My plan is to get two new Grp 31s for starting and short term house loads, supplemented with a big bank of 6V golf cart type batteries when I can get around to building in a case for them. Another issue we pondered... the battery charger is a KEY part of the system. You need to match your amp hours to your charging capacity. Another key point is that a modern hi-tech 3 stage "smart" charger will be a zillion percent more effective, and will dramatically increase the life of whatever batteries you choose, than anything cheaper or older. We replaced a quite impressive looking ferrous core charger than had been boiling away batteries at the rate of one per year for the former owners. Plus it did not have an equalizing function. Fresh Breezes- Doug King |
#15
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About those batteries?
Schoonertrash wrote:
The old boat had a couple of 4D's at 220 Amp each. The new boat is currently using fairly standard 12 volt RV size batteries at 110 ratings each. I'm guessing Group 31s? I'm thinking of going to the 6 volt variety as I have to go back up to or near 400 Amp hours of storage. Which size, which voltage, and why? If six volt are the fairly inexpensive one's from Costco (golf cart batteries)useful or should I just spend the money at West Marine? I'm not saying *don't* spend the money at West Marine, although I personally would not. At WM you do get a better guarantee than you're likely to get at any local battery discounter. But before you go seriously shopping for new batteries, check into more info. Here are some links i found helpful when pondering the same question earlier this year http://bart.ccis.com/home/mnemeth/12volt/12volt.htm http://www.marine-electronics.net/te..._faq/b_faq.htm And in the end, since we already had the wiring & the cases for two Grp 31 batteries, I bought two Excide Grp 31 dual purpose (700 CCA and 115 AH each) at Agri-Supply http://www.agri-supply.com/ They have a big outlet which is not too far off our track from home down to the boat. Unfortunately, the particular batteries I bought were at the end of their shelf life and have not proved very satisfactory. Furthermore, they are at or below the minimum bank we need for life a-cruising with our electrically profligate lifestyle. My plan is to get two new Grp 31s for starting and short term house loads, supplemented with a big bank of 6V golf cart type batteries when I can get around to building in a case for them. Another issue we pondered... the battery charger is a KEY part of the system. You need to match your amp hours to your charging capacity. Another key point is that a modern hi-tech 3 stage "smart" charger will be a zillion percent more effective, and will dramatically increase the life of whatever batteries you choose, than anything cheaper or older. We replaced a quite impressive looking ferrous core charger than had been boiling away batteries at the rate of one per year for the former owners. Plus it did not have an equalizing function. Fresh Breezes- Doug King |
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