I want to run my Edge-V with a larger battery than the normal one. The battery also has 7.4V but no Molex connector. Now I would like to have the pinout for the Molex connector, but I find it nowhere and in the schematic for the Juice Board are also no details.
I have seen this schematic and was confused because normal 2S lipo batteries have only 5 cables for charging (2 for +/- and 3 for balance charging) and the molex port on the juice board has 6 contact pins.
The official LiPo also got 6 cables, so what’s the use of the 6th?
I figured out, that it also could be, that the connectors on the board are for every cell by themselves, so every cell has his own + and - pin. But then 2 cables of the 6, that come out of the Khadas LiPo would be useless, because of the 2 cells and not 3 . I purchased an Khadas LiPo and test, how the cables are connected to the cells and the Juice. I will post my result.
Thanks for help!
Maybe the remaining connections are for future use, such as 3S, just a guess. Maybe it is for a thermal probe or communication, again, just a guess. I do not have the JB or LiPo, so hard to know.
From the pictures on Khadas Shop, battery is using six conductors.
The schematic shows internally, pins1-3 are tied together to VBAT, pins 4-8 tied together to ground. Pins 7 and 8 look to be something other than cell connections, again maybe for thermal probe/comm in some examples.
Not sure how this would work to balance cells, maybe JB does not operate in balance mode. From the schematic, looks like JB treats a pack as a single 7.4v cell.
All speculation for me at this point.
Look forward to your findings.
I have 18650 cells, which are connected in 2S2P to get required voltage. Each cell capacity : 3V to 4.2V so the battery pack voltage is 6V to 8.4 V.
Can anyone help me how can I connect this battery pack with juice board?
@Gouwa Does it mean that I can connect for example 2s4p 18650 unprotected LiPo cells each of them Cell1 to pin1 & Cell2 to pin2 (VCC) and Cell1 to pin4 & Cell2 to pin5 (GND) and the battery pack must be loaded with an external battery management system with balanced/overload/overvoltage protection?
Is there a undervoltage protection that shutdown poweroff the board in case the cell voltage goes below 3V?
thx can you tell me how to monitor battery drain inside Ubuntu from the CLI? Is there a driver for this and in general how to monitor all the consumer to powerdown unneded subsystem in case of low voltage?