JP1 pads doesn't match documentation?

[m-kozlowski]

Documentation says that in order to reduce charging current to 500mA I need to cut existing trace on JP1 and connect two bottom pads, but it looks to me that pads are, top to bottom:
PAD1: R13 -> PROG1
PAD2: GND
PAD3: R23 -> GND
So doing as docs says we'd end up with PROG1 floating and R23 connecting ground to ground.

[omzlo]

Well, this is embarrassing: you are absolutely correct. This is a bug in our hardware :-(
The only workaround is to replace R13 with a 2K resistor and keep the original solder trace as is (uncut).

There seems to have been some kind of version mismatch or regression in our production. The correct schematic (from a prior prototype) looks like this:

[meinnamehier]

So i already cut the trace and soldered across the other pad.
Do i need to revert that? What if I keep it like this?
I only just hooked up a battery last night and read about the bug today.

[m-kozlowski]

You're running out of specification. I can't find anything in datasheet about leaving PROG1 floating, so let's just assume you're somewhere far, far right on this chart
You should revert. Or solder another 1K resistor across the cut trace, so you'll have desired 500mA charge current.

[meinnamehier]

I reverted last night and everything seems to be working fine.
Based on your assumption, at least the current would have been very low instead of catastrophically high.
I just wish that I had bee informed in a more active way about this fault, considering we are dealing with LiPo batteries, that can be dangerous when handled incorrectly.

[omzlo]

I just wish that I had bee informed in a more active way about this fault, considering we are dealing with LiPo batteries, that can be dangerous when handled incorrectly.

We are sorry about this bug, which was only discovered recently thanks to the input provided by @m-kozlowski . This should not have happened of course, and we will correct this in the next version.

As noted above, the simplest way to go down to 500mA charging current is to keep the default trace on JP1 (or bridge it if it has already been cut) and replace R13 with a 2K resistor.