TP5000 question

I am a bit out of my area of knowledge. A year ago I bought the pictured TP5000 chager board. It is supposed to come with a default voltage of 4.2; can also be set to output 3.6 volts. When I power it up I get 3.6 volts across the output, B+, B-. I never changed anything on this. Am I right that I should have 4.2 volts even not connected to a cell?

Anyone have any ideas? Anyone familiar with this biard see anything that is to be changed to switch voltage. The info I hasve means nothing to me….

7. Switch mode:
1>F Welding point ON for Lithium battery and output 4.2V
2>F Welding point OFF for Lithium iron phosphate battery and output 3.6V

Thanks

I am thinking that maybe the two solder blobs pointed to by the yellow arroe must be bridged to make 4.2 volts?

I’m going by what is noted on a different version of the TP5000 board…. there it states to short two blobs to produce 4.2 volts…… see image at the end of this link… TP5000 3.6v/4.2v 2A Charger Module 3.7v Lithium 3.2v LiFePO4 Battery Charging | eBay The board has a different layout but there are two similar blobs

Looks like it.

Yes!! I went ahead and bridged the dots/blobs and now have 4.2 volts output. Test charge underway with the green/red indicator led hooked up the right way. :slight_smile:

Now I see and make sense of the F as noted in the data I had….

All becomes clear :slight_smile:

Hmm, I was going to chime in, but I guess I don’t have to anymore.

I feel so useless… :cry:

Much like I felt before I discovered what was stated on the other charger board.