Solar Accumulator (Generator) 18650 battery testing.

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This is an overview of the testing process I used to capacity check the BAC (Chinese battery manufacturer) 18650 cells cells used in this project. All the cells were new spare stock battery packs from some product.
The cells were supplied as pairs, rated at 3.7 Volts 4400 mAh.
I tested these myself using my Liitokala Lii-500, and all cells gave a capacity of around 2150 mAh, which close enough for this project.

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1 окт 2024

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Комментарии : 3

@alibro7512 4 года назад

Nice project John, looking forward to the final product. The batteries are a bit lightweight for my ebikes but a good price if they fit your project. Do you have a link?

@johnnodge4327 4 года назад

The cells aren't high powered, but I worked out the capacity in mAh per £, and these were cheaper than proprietary cells, by a considerable margin. Unfortunately they're NLA, as I bought all they had. The cells cost me £45, which isn't at all bad for a 3S 32Ah battery pack. I'm just working out how to fit everything into the box, so the cooling fan in the inverter will circulate air though the inverter, batteries, BMS, DC to DC converter too. I hope to get this project finished by the summer holidays.

@alibro7512 4 года назад

@@johnnodge4327 This seems to be a good place to buy batteries. The price doesn't include VAT and is more than you'll pay from ebay or Aliexpress but are a little more likely to be genuine. www.fogstar-wholesale.co.uk/product-category/batteries/ And her is another eu.nkon.nl/