Building battery from MAKITA Konion PACK

Batteries, Chargers, and Battery Management Systems.
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Matador   10 kW

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Re: Building battery from MAKITA Konion PACK

Post by Matador » Jul 20 2019 10:27pm

john61ct wrote:
Jul 20 2019 10:01pm
want to build wrote:now i understant the second statement is less important that resistance and year of manufacture.
Capacity matching IMO is #1
Agreed!

Matador

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Matador   10 kW

10 kW
Posts: 889
Joined: Jun 29 2016 10:00pm

Re: Building battery from MAKITA Konion PACK

Post by Matador » Jul 20 2019 10:36pm

Matching
1) capacity (mAh), and
2) Same cell brand and model (and chemistry) (ex: all VTC4s).
Is the most important

But if you can additionnaly also match for
3) DCIR
4) Cell Age and number of cycle

Then you are golden !

The worst thing to do is mix old laptop cells of different brand, models and chemistry, different ages, and DCIR... Even if they seem to show the same capacity some will be end of life and behave very differently than those that still have some good life.

Matador

john61ct   100 kW

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Re: Building battery from MAKITA Konion PACK

Post by john61ct » Jul 20 2019 11:50pm

Well for me, I toss a batt that's lost 20% of its original capacity anyway. . .

want to build   100 W

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Joined: May 18 2018 3:37pm

Re: Building battery from MAKITA Konion PACK

Post by want to build » Jul 21 2019 1:32pm

Thank for your precious informative replies :)

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