Looks like a bitsa to me.
LROBBINS wrote:If you have a pair of even barely usable batteries smaller than the ones that fit, you might want to attach them just to check whether the chair is functional before spending oodles to buy decent batteries. MK Gel in that size will be more expensive, wear out sooner and give less range, and weigh lots more than LiFePO4, but with Lithium you have to deal with the complexities of balance charging. If you are willing to study up first though LiFePO4 is well worth the trouble.
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