New  LiFeP04 from Tongyu-Tech, China

The old LiPo weighed in at 9 pounds (2 x 4.5) and 20 AH. New battery weighs about 15 pounds and is 19.2 AH. Its big. Just fit in the pack with no room to spare. I know it will last longer than the past pack of 4 years, even though I didn't cycle it much.

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