Well today I received my two new YiboYuan chargers I ordered on Ebay (see post#26 above). Came from a US Warehouse, not extremely fast, but not terribly slow either (faster than Tmart!). I did in fact receive YiboYuan chargers, HOWEVER I received two model AC-11's and not AC-10 (it was only the photos in the Ebay listing that showed AC-10, it wasn't stated anywhere in the listing). I don't think this is a big deal though since I can't spot any difference between an AC-10 and an AC-11. Both are 4.35v @ 600mA charge rate with a USB output as well.
In any case, here are some pics:
The internals don't look as sophisticated as the first charger. My first question is, where is the AC -> DC circuitry (i.e. the 4 way bridge rectifier circuit)? So how does this one look? Does it look safe?
Thanks HKJ. Well I won't ever use it on 230V AC. So you think it's safe for 120V AC use? And what is controlling the charge termination? I don't see an IC like I would expect.
So it seems the first chargers I received from T-Mart would be better suited to use than this second set. I would definitely charge up to 4.2v on another charger first due to the slow 350mA charge rate on that first charger. Ugh - thought I had a good solution going.
I see. So this charger is still "not recommended". (So does this mean it's "CE" on the label on the back of the case is bogus?) I would ask what capacitor I could replace it with to make it safe, but I don't think this 350mA charger is worth the effort - the 600mA might have been. Any photos of what a proper labeled capacitor would look like or how it would be labeled?
I think I'm just going to bite the bullet and buy an Xtar SP1 from RMM. I just feel that price is a little high for a single bay charger and the price on the dual bay is crazy high! At the same time, I'm tired of throwing my money away trying out these cheap Chinese chargers! At least I will be charging 4.35v cells safer and more properly.
Anybody want to buy 5 cheap Chinese 4.35v chargers?
It looks like the circuit board has space for a prober safety capacitor.
It is not all equipment that has a capacitor between mains and low volt side, but leaving the capacitor out can give problems with EMC (I.e. noise or jamming of radio equipment).