Dashrynn
Contributor
how about one of these? 12.8V LiFePO4 Battery Packs from 19.8Ah to 200Ah
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I have been using a special order battery assembled by Tenergy.com made up of 40 NiMH D cells with spot welded connectors configured into 24 volts and 20 amps.
Square NiMH 24V 20000mAh 4x5x2 w/ Bare Leads
It weighs 14 pounds, I use 4.5 pounds of lead melted into a weight that fits under it to be neutral, and a shaped foam spacer in the nose. NiMh are fussier in some ways than a SLA battery and self discharge by comparison. It will run 90 minutes on high nonstop.
I also put an AV2 heat exchanger and transmission from a damaged scooter into a 12 volt AV1 and reconfigured the NiMH battery to 12 volts 40 Amps. It runs over 80 minutes on medium nonstop without overheating ( a big AV1 problem). It is a bit faster on medium than the AV2 on high. It is even faster on high but I don't have anything to keep up with it on an hour dive so I haven't tested it thoroughly.
@ Mitch...did you ever find some batteries that would work.....14ah or 12ah...I dont mind taping them together, just would like to know what is working for others...thanks againI've seen pairs of batteries taped together to make a 14ah battery for the Apollo AV-2 but can't seem to find a pair of 12v 14ah batteries with the right dimensions to make one. Does anyone have one that they share the brand and model number off of the battery with us please? I know I can buy one already made, but I hate to pay $400 for a battery I know I can make myself for less than half that. Thanks and if anyone else is curious about the puzzle battery compartment is about 6.9 inches, by 5 inches by 6.5 inches.
Thanks.