Just curious - why Lithiums are so heavy?
100 AH, flooded, 66-69 lbs. 100 AH, Li, 29-31 lbs. Brain-dead sellers jumping on a new bandwagon, "One-fifth the weight of a traditional battery", yahooo.... More usable capacity, yes, but not...
Forum Discussion
Almot wrote:
Valhalla - 30 lbs is obviously not 5 times less than 60 lbs, that's why I noted 1.5 higher usable capacity of Li. Still doesn't add to more than 3* capacity per weight.
The original post suggested 2-3 times as much:
Half the weight and 50% more capacity = 3 times as much capacity per pound.
The usable capacity is also a little more complicated. Since LA batteries tail off once they hit 80-90% of full charge, it's not uncommon to go between 50-80% charge each day (with occasional top ups to avoid damage). That means you only get 30% of the rated as usable. Compared to Lithium where you can get 70-90% depending on how hard you want to work them.
Do that and you do get up around 5 times more power on a per pound basis. Cost is another matter.
