Smart Charger Comparison

ESK8 Electronics
1

I’m going to be using a top mounted battery (12s8p) without a BMS on my next build for easy swapping between a couple different boards.

I’m curious to hear if anyone has experience with either of these smart chargers, or anything similar.

https://www.amazon.com/dp/B07F6V87HS/ref=sspa_dk_detail_5?psc=1&pd_rd_i=B07F6V87HS&pf_rd_m=ATVPDKIKX0DER&pf_rd_p=a54d13fc-b8a1-4ce8-b285-d77489a09cf6&pf_rd_r=RTDC7CZXYHZF3J9DR6B5&pd_rd_wg=VHZWk&pf_rd_s=desktop-dp-sims&pf_rd_t=40701&pd_rd_w=97fRN&pf_rd_i=desktop-dp-sims&pd_rd_r=dd2da321-b2f4-11e8-b96a-75051c3f57a5

https://www.amazon.com/dp/B07DR8HW19/ref=sspa_dk_detail_1?psc=1&pd_rd_i=B07DR8HW19&pf_rd_m=ATVPDKIKX0DER&pf_rd_p=a54d13fc-b8a1-4ce8-b285-d77489a09cf6&pf_rd_r=NH1X2H0HPXXXFX3TT2ZC&pd_rd_wg=LKUWC&pf_rd_s=desktop-dp-sims&pf_rd_t=40701&pd_rd_w=JyXTB&pf_rd_i=desktop-dp-sims&pd_rd_r=428fcf43-b2f6-11e8-8742-1712fd196554

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2

I’ve been thinking about the cycle satiator for 5p, but 8p is gonna need lots of amps.

that second one looks pretty good.

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3

To use a dual, usually you have to break the serial connection in your pack, as the grounds tend to be shared between the 2 sides.

For a huge pack, maybe something serious like this?

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4

Yeah, it’s really going to be 2 6S packs connected in series. Though, I may borrow some elements of @michaelcpg’s pack design.

5

Yeah it’s pretty nice. Though it seems that you need to use DC to charge at high current on both channels at the same time.

6

I was using similar setup. For DC power supply grab some 24V or 48V ~1-2kW Server Power supplies for extra cheap on ebay europe has https://www.servershop24.de/en/

But in the end I just grabbed simple 12S 8A charger and just bulk charging I got tired of disconnecting 12s to 6SP and other stories :slight_smile:

7

I’ll probably wind up doing that most of the time. I’ll have a battery monitor to make sure they don’t drift too far apart. Good idea on the server power supply. I’ll see what I can find in the states.

8

This charger will charge up to 12s and up to 25a It does require an external DC power supply though. https://www.amazon.com/EVPEAK-1350W-Charger-Battery-Screen/dp/B01D4PORJW/ref=sr_1_2_sspa?ie=UTF8&qid=1536379501&sr=8-2-spons&keywords=12s+lipo+charger&psc=1

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9

:+1: for the server power supply

10

wow never seen that before. and it has a balance plug inlet for a 12s? it looks like it. very nice.

11

I use two server power supplies. I followed the guide someone put up on an RC forum. Use them with isdt sc-620. Personally I balance each pack first then parallel together stopping at 4.15v just in case one cell is out of balance. Gonna get another sc620 to speed things up. I use my packs in a variety of projects too.15363884610932093052845

12

I have one. It comes with a breakout board for 12s. I tried to buy a 10s breakout board but they stopped responding. Will have to try making it myself if I want it badly enough.

It can do bulk charge (without balancing) at 12s, which is nice.

13

It needs a power supply too?

14

Yes. I think its usually separate on high power chargers for heat.