Help needed with Lipo Balance Cable

r_chung · February 3, 2018, 5:02pm

Hey, I am planing to charge my 6S battery in a way so I don’t need to take out the battery to charge and just plug the charger into the board. Similar to this: http://www.electric-skateboard.builders/t/guide-how-to-charge-lipo-batteries-without-removing-them-from-the-board/34254/3

I also wanted a voltage readout like this: https://hobbyking.com/en_us/hobbykingtm-lipo-voltage-checker-2s-8s.html, so I can read the battery levels when I’m riding.

But from what I’ve read. It’s best to connect the balance cable from the battery into the charger. And since there’s only one balance cable from the battery, is there a way I can just plug in the balance charger into the battery as well as having a voltage monitor with needing to take out any electronics. Thanks

LAVAMAN · February 3, 2018, 5:08pm

I have a 6S battery (3 x 2S LIPO) and I charge it without removing from the enclosure. Please see wiring diagram and photo attached. BALANCE_PORT_WIRING_REVISED

r_chung · February 3, 2018, 5:11pm

Hi, Thanks for the reply. Does your board have a voltage monitor? Because I’m unsure how to plug in the balance cable into both the charger and the voltage monitor at the same time when I charge it.

LAVAMAN · February 3, 2018, 5:25pm

I do not use one currently, but it is not hard to wire into your setup. Do a search and you should find how to integrate into your wiring diagram. I am not an electronics person and so the experienced guys on this forum helped me with my wiring and sent me the diagram I attached. Works great.

r_chung · February 3, 2018, 5:26pm

Alright, thanks I’ll see what I can do.

krloz · February 3, 2018, 5:47pm

Maybe a parallel balance cable but with 1 male connector and 2 female. But you can do this simply with the battery cable. Plug the balance charger when charging and the voltage monitor when discharging. And nothing when neither. That way your voltage monitor won’t empty your battery

r_chung · February 3, 2018, 8:26pm

Oh something like this: http://www.nexusmodels.co.uk/jst-xh-parallel-adapter-6s.html That would make sense actually. Thanks a lot

krloz · February 3, 2018, 9:18pm

Actually no The opposite. That one has two males one female, to connect two batteries in parallel to a same charger. You need one with two females and one male. Which is harder to find and probably easier to make if you know your soldering

r_chung · February 3, 2018, 10:36pm

I’m only using a single 6S lipo battery though so it should be OK right.

krloz · February 3, 2018, 10:42pm

I didn’t explain my self properly. The one you post links 2 batteries to one bms or cell monitor. You want one that links a single battery to two bms or cell monitor. That is 2 input one out. You want 1 input 2 outputs

pat.speed · February 3, 2018, 11:02pm

He needs one female to a double male connector

r_chung · February 3, 2018, 11:19pm

Yh I just realised my bad. Does anyone sell them or do I need to make my own.

krloz · February 3, 2018, 11:35pm

Nope. Male is the one that connects to battery. Female is the one that connects to bms or monitor. So wanting to connect a single battery to a bms and a monitor he needs one male and two females

krloz · February 3, 2018, 11:36pm

@r_chung

Make one or get somebody to make one. Or search, like, a lot

r_chung · February 4, 2018, 12:34am

Yh alright. I mean I can solder but if its just easier buying one and would probably look better. But thanks a lot anyway.

pat.speed · February 4, 2018, 6:47am

Um no, your wrong… this is a male connector

And the battery already has a male connector so he will need a female that connects to the battery. Read brother, read, read, read

Ishayc · February 4, 2018, 7:03am

This is a female connector. From what I’ve seen so far, all balance chargers have male connectors which means that the batteries have female ones.

krloz · February 4, 2018, 10:39am

I have read man, lots. And go have look at some primary school biology dude. Male is the one with the pipi hanging out and female is the one with the hole you put the pipi in, as long as she totally agrees. “Brother”

pat.speed · February 4, 2018, 11:15am

Sorry I was meaning as in the plug shape. (The plastic bit) didn’t realise you were talking about the pins and sockets

krloz · February 4, 2018, 11:18am

Actually I have been trying to find a photo with a single jstxh connector That clearly states its gender and from a trusty source. And I haven’t been able, so it seems understandable people are getting them mixed up as they are more referred to as battery side… Anyway as I understand connectors are always referred to considering whether the connection part (metal, not housing) resembles what I explained.
Oh and sorry if it sounded childish, or mockery…i kind of learned it that way, way long ago.