Battery advancements thread

[orbital]

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18650 @ 4000mAh is a milestone number

https://www.vapcelltech.com/h-pd-193.html

 

[jtr1962]

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18650 @ 4000mAh is a milestone number

https://www.vapcelltech.com/h-pd-193.html

300 Wh/kg going by the specs.

 

[orbital]

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Vinh carries them

Vapcell N40 18650 4000mah 10A Unprotected

Factory Link Here Free solder top added upon request in checkout note Size: 18.3±0.2*65.0±0.3mm Typical Capacity: 4000mAh (0.2C discharge) Min capacity: 3850mAh (0.2C discharge) Nominal voltage: 3.60V Max Continuous Discharge Current: 10A Max Discharge Current: 12.5A （with 60 °C temperature...

skylumen.com

illumn carries them

18650 Vapcell INR18650 N40 4000mAh 10A High Discharge Flat Top

18650 Vapcell INR18650 N40 4000mAh 10A High Discharge Flat Top

illumn.com

 

[NiOOH]

These look interesting, but I wonder what would the cycle life be.

 

[orbital]

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I'd argue longer life cycle since the higher capacity, you need to recharge them less often.
2A recharging won't even stress those, at all.

 

[NiOOH]

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I'd argue longer life cycle since the higher capacity, you need to recharge them less often.
2A recharging won't even stress those, at all.

It depends. If you pay a cycle life penalty equal (or less) than a gain in capacity, it's all OK. However, usually it is more.

 

[etc]

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18650 @ 4000mAh is a milestone number

https://www.vapcelltech.com/h-pd-193.html

Yeah but is it credible? Overstating lumens/mAh/etc. is common in the industry. Plainly I do not believe it.

 

[thermal guy]

I got and then threw away some 18650 that stated 9900 mah😂😂

 

[orbital]

Yeah but is it credible? Overstating lumens/mAh/etc. is common in the industry. Plainly I do not believe it.

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There are tests on that cell.
It's not like some light on ebay with a single xml emitter saying it has 40,000 lumens..

 

[orbital]

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Nice award for Michigan company.

Here’s the Winner of Autoweek’s 2023 Vanguard Award, Technology

The Novi, Michigan-based Our Next Energy (ONE) is pushing the EV boundaries by developing durable, long-range LFP batteries, built with abundant raw materials.

www.autoweek.com