Driving myself crazy over batteries

jeffjeeptj

Adventurer
I have 2 Odyssey (PC1700 and PC2250) and 3 Sears Platinum (Odyssey PC-2150/Group 31) batteries and a Odyssey OMAX-50-3 charger.

I usually keep one of the 2150s in the Toyota Sequoia for times when I put the ARB 50 in it. The Toyota does the usual Toyota job of not enough charge to keep the Odysseys fully charged and I periodically pull the battery down to 10 volts and recharge with the Odyssey charger per the Odyssey recovery document. The Sequoia has a BlueSea ACR with 2 gage wire to a Anderson SB350 at the rear bumper for connection to the below trailer.

I also have a trailer with a WFCO 8955 converter charger. It does not do well keeping the Odysseys fully charged either. I am planning on replacing the WFCO power unit with an IOTA DLS-55 with an IQ-AGM module.

BUT, the Odysseys are all getting old (and I have mis-treated them too) so I am thinking of a Trojan T-1275 FLA with the iota and the IQ4 module on the trailer instead of the odyssey. I cannot fit 2 Group31s at the trailer tongue location, and I do not like the idea of 150 pounds of battery weight there either. The T-1275 gives me 150 AH (gross) with about 85 pounds, and a bit over 1/2 the cost of the aodyssey. The Iota is the same, just a different plug in module. I just no longer have any FLA tools (hydrometer, thermometer, battery straps, charger, etc.) and I have enjoyed no acid mess nor holes in my jeans. Also, rotating the same size group 31s into the Sequoia, trailer, and a spare in the rear floorboard has been great.

Any thoughts? I really want to stay clear of the cost of LiFePo4 and the associated “accessories”.
Should I get the Odyssey or the FLA Trojan?
TIA
 
Last edited:

67cj5

Man On a Mission
If you are worried about the weight then Lithium is the way to go, But if you want the power of Lithium and don't care about the weight and want to save 50% of the cost then Buy Lead Crystal batteries because you can use all the power from time to time and run them down to 20% as well and they will be Ok, just add a 30 Amp DC-DC charger and you will be good to go, If you want to run 2 X 100Ah Lead Crystal Batteries then Run a 60Amp DC-DC Charger, If you buy 2 X 78Amp Lead Crystal batteries it will be half the price of the 100's but they will still give you full power when you need it,

Hope that helps.
 

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