Lipower "B" and "C" terminals

Community PCB Design
1

I am pretty new to reading schematics and wanted someone to confirm what exactly the “B” and “C” terminals are on the Lipower board. I think these are the two terminals for wiring the a LiPo charger. Correct?

Thanks for the help.

R

2

I assume you’re talking about the lillypad version of the LiPoly charger. Unfortunately, the schematic and the board markings don’t seem to match up… or at least I don’t see a correlation. You’ll have to take a close look at the wiring on the board (probably with a multimeter) to figure out exactly what they connect to. I tried looking at the pictures on the site, but there isn’t enough detail to clearly see where the traces go.

3

Thanks for responding.

Yeah I am referring to the lilypad version of the LiPoly charger (the LilyPay LiPower) and it is totally confusing to me. I think that to connect a charger the + PWR connects to terminal “C” and then GND to one of the “-” terminals. But then what would “B” terminal be for?

I will use the multimeter to check but I would love some confirmation.

Thanks-

R

4

From looking at the picture the schematic, I think the ‘B’ is the “Raw Battery Voltage” terminal and the ‘C’ is the “Charge Pad” terminal.

The + would be the 5v output.

The B would be where you would gain access to the battery’s output voltage. This is controlled by the switch.

The C would be where you would connect the + side of your charger.

The JST connector would be where you would connect the + side of your battery.

5

Fantastic. Thanks for the response. One question though…Isn’t the JST connect both + & - for the LiPo battery?

6

Yes, you are correct, the JST connector can be connected to both the + and - side of the battery.

7

Thanks so much for the quick reply and all your help. This makes me feel better about getting my feet wet with the LiPower, LiPo Charger and battery.

Cheers,

R