I would be a bit worried that the extra weight compromises the structural integrity of the frame. 2kWh are heavy

BizarroLand 3 days ago | parent | next [-]

high quality heavy 18650s weigh about 2 oz. 190 of them would weigh about 24 lbs. Throw in another 6-10 lbs for bms, wiring, casing and errata and it's not that bad.

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elcapitan 3 days ago | parent | prev | next [-]

I would be more worried charging that huge home built battery pack. I'm sure OP knows what he's doing, but I wouldn't want to bet my house on it.

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Forge36 7 hours ago | parent | prev | next [-]

Bikes typically have a weight rating. Mine has 150lbs of cargo capacity (is a cargo bike).

	▲	analog31 6 hours ago \| parent [-]
		I don't know if this figures into the engineering formulas, but an e-bike needs to be stronger due to the higher speeds and power levels. On a human powered bike, if you're hauling 150 pounds, you're probably going pretty slow. My friends who have e-bikes go through a lot more "consumable" parts such as chains, tires, brakes, cogs, and bearings.

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oulipo2 4 hours ago | parent | prev [-]

That's why at https://infinite-battery.com we designed a fireproof and waterproof casing for our repairable batteries