Author Topic: 18650 battery charging / chargers  (Read 1113 times)

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Offline LiteaceTopic starter

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18650 battery charging / chargers
« on: February 01, 2020, 05:12:51 pm »
Ive got a few battery powered tools , lamps that I want to convert to use a few 18650 batteries, One thing that is confusing me is the charging, Ive see these little charging / management PCB but none have any meter or LED to indicate what state the battery/ies are in.

I have a few pieces of equipment, lamps, phone, laptop and even the cheapest lamp has a green/red charging-charged LED indicator

Is there anything I can add to these charging / management PCB ?
 

Offline aix

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Re: 18650 battery charging / chargers
« Reply #1 on: February 01, 2020, 05:53:10 pm »
It's pretty easy to find charging boards that have status LEDs.  For example (first hit on Aliexpress for "TP5100"): https://www.aliexpress.com/item/4000130857356.html
 
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Offline aix

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Re: 18650 battery charging / chargers
« Reply #2 on: February 01, 2020, 07:56:55 pm »
For completeness, TP4056 charging modules also seem to routinely include status LEDs.  The first two hits on Aliexpress (sorted by sales):

https://www.aliexpress.com/item/32797834680.html
https://www.aliexpress.com/item/32986135934.html

 
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Offline LiteaceTopic starter

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Re: 18650 battery charging / chargers
« Reply #3 on: February 02, 2020, 08:10:40 pm »
Thanks is the TP5100 just for a single 18650 ?

Thanks again
 

Offline aix

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Re: 18650 battery charging / chargers
« Reply #4 on: February 02, 2020, 08:27:33 pm »
1S or 2S (you can of course connect multiple cells in parallel).
 

Offline LiteaceTopic starter

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Re: 18650 battery charging / chargers
« Reply #5 on: February 22, 2020, 05:06:25 pm »
Thanks for the info. Im still a bit lost as to how to wire up these chargers, is the charge input the same connections as the power output from the batteries and if the charger has not got any type of indicator how do you know when the batteries are fully charged

Thanks
« Last Edit: February 22, 2020, 05:18:19 pm by Liteace »
 

Offline mvs

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Re: 18650 battery charging / chargers
« Reply #6 on: February 23, 2020, 10:44:38 am »
Thanks for the info. Im still a bit lost as to how to wire up these chargers, is the charge input the same connections as the power output from the batteries and if the charger has not got any type of indicator how do you know when the batteries are fully charged
Do you talk about Li-Ion charger or battery protection board/BMS? 
 


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