They are also based on the 6316, but have the additional IC (protection IC) equipped. They disconnect at 2.5V and keep the bank disabled until external charging power is connected from the outside.
According to the datasheet the protection chip should be DW06D. I have one battery bank from dealextreme which has an FM6316 and a chip marked CT2105 and it cuts off at aroung 2.6 volts.
I used a bit of brass strip glued down with a touch of silicon on my crappy version I soldered to a pair of Li Ion flat packs (then resoldered them parallel vs 7.4vdc power pack) I pulled out of an old netbook…really need to get me one of the good mobile power banks
I have FM6316FE (not FM6316CE) on board, but I can’t see CT2105 chip. However it stops discharge at 3.02V, haven’t checked the charge termination yet.
Can this be a good unit? Bought 15.05.14 from ebay, black one, board CHD-XS V1.1.
YOu guys thought you had it bad with what you received for your PowerBank. I got one off ebay and this is what I received:
Damn thing is empty! Obviously ebay got the description wrong and didn’t mention there were no components inside. ehhhh
So I’ve already got my refund, (big 1.87)…but now, where can I find the innerds for it? I’ve come across THIS at fastech and it looks to be correct (please chime in here!) , but haven’t come across the battery connections at the other end….
Yes that unit might fit, might be able to just get some wire and solder the connections to a battery inside the box, the one that comes in a unit is a spring and pretty rigid material
I might have one laying around because I stripped one and soldered to a dual flat pack battery I pulled out of one of my kids busted netbook things
What you need is a good SLAP!
That’s just going too far. Just get a decent power bank and be done with it.
That thing looks like the proverbial ‘rat hole’ to me.
From my experiences with power bank, they all are cheap made in china that will die sooner or later, either the pcb or the cheap 18650 put in there.
But I want to have one for traveling in case I go to an exotic country and a loss of power, or in an emergency backpack where I will put a 2x18650 one