6-channel independent charger / pseudo-balancer

Batteries, Chargers, and Battery Management Systems.

6-channel independent charger / pseudo-balancer

Postby Overclocker » Sun Jul 23, 2017 1:00 pm

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since these cells are a bit older i'm expecting to do a bit more balancing on them. the objective is to be able to simply plug in this gadget into the group that needs balancing. since each channel is independent it'll simply charge its channel up to 4.20v and stop. this is just a prototype so i'm starting out with just 6 channels.

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these are cheap TP4056 charging boards. no "F" logo on the chips so they're counterfeits :shock:

since you can't use a common power supply i'll be using 6 independent power supplies: Ktec 5v 2a wall warts (UL Listed!)

to be continued...
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Re: 6-channel independent charger / pseudo-balancer

Postby zackclark70 » Sun Jul 23, 2017 1:08 pm

looks like some good work :)
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Re: 6-channel independent charger / pseudo-balancer

Postby cheapcookie » Sun Jul 23, 2017 10:44 pm

very very nice, tp5056 charges to 4.2
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Re: 6-channel independent charger / pseudo-balancer

Postby cheapcookie » Mon Jul 24, 2017 12:20 am

Dear OC, this video might be of interest to you [youtube]https://youtu.be/rpRYNMrVCk0[/youtube]
Last edited by cheapcookie on Mon Jul 24, 2017 12:20 am, edited 1 time in total. View post history.
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Re: 6-channel independent charger / pseudo-balancer

Postby Overclocker » Mon Jul 24, 2017 3:55 am

cheapcookie wrote:Dear OC, this video might be of interest to you [youtube]https://youtu.be/rpRYNMrVCk0[/youtube]



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wow thanks for the tip. i was totally unaware of that thing. i even searched this forum for "B0505" and nothing turned up

that would allow me to use just one big 5V supply. i'll order a bunch of them asap
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Re: 6-channel independent charger / pseudo-balancer

Postby cheapcookie » Mon Jul 24, 2017 1:07 pm

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pics from hackaday. project page https://hackaday.io/project/9919/logs


I will build myself a kit too, to charge 4s lipo, if it works well enough, it will charge my 12s
Last edited by cheapcookie on Mon Jul 24, 2017 1:10 pm, edited 1 time in total. View post history.
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Re: 6-channel independent charger / pseudo-balancer

Postby Overclocker » Fri Jul 28, 2017 11:37 am

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good thing i checked the datasheet before pulling the trigger on the B0505. the output current is too low

so i went ahead w/ Plan A. so far so good. this thing is definitely gonna work
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Re: 6-channel independent charger / pseudo-balancer

Postby cheapcookie » Sat Jul 29, 2017 12:27 am

can you put webcam over tp4056 in TIMELAPSE mode, so we can see if they shut off at the same time.

Just for fun
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Re: 6-channel independent charger / pseudo-balancer

Postby Overclocker » Fri Aug 04, 2017 2:55 am

as mentioned earlier these are FAKE tp4056 chips. accuracy is a lot worse than i expected, they range from 4.11 to 4.25. totally unacceptable :roll:

so i'll be ordering these TP5100 modules. the 2A charging current should be a big plus. switchmode so cooler running. google doesn't turn up anything for "fake tp5100" so these are most likely legit. keeping my fingers crossed...

Image
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Re: 6-channel independent charger / pseudo-balancer

Postby Overclocker » Fri Aug 04, 2017 9:37 am



just watched this vid. apparently the TP5000 performs better... gotta look for TP5000 then
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Re: 6-channel independent charger / pseudo-balancer

Postby cheapcookie » Mon Aug 07, 2017 5:26 pm

I would go for the tp5000, as said in the video it is better.

I gathered more info, but I forgot :(

Also, you might know the company "chargery" from China,

they make cool battery stuff and they are going to roll out a 12s battery charger soon.

I might grab that instead of doing the tp5000 shit.

Mainly because I could potentially charge to 4.1v

Ill keep you updated, Bye
Last edited by cheapcookie on Mon Aug 07, 2017 5:26 pm, edited 1 time in total. View post history.
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Re: 6-channel independent charger / pseudo-balancer

Postby cheapcookie » Sun Aug 13, 2017 4:03 am

this is super bad ass, https://youtu.be/QxR-_ZnREQQ
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