Quote:
Originally Posted by lattesurf";p="
gbakakos , for trickle charge, the charge rate should be at 0.1C or 100mA. The USB port should be alright, but not on the AC adaptor. Since the AC adaptor supplies 1A which is 1C, the trickle charge current is too high.
Besides, there are no safety cut off sensors in the AC adaptor. So the adaptor would continue supplying 1A even when the battery has charged fully. This 1A is what causes battery damage when it is over-charged.
These players are cheap goods, so you can't expect sophisticated features like cut-off/temperature sensors in the chargers, as what all brand-name players or rechargeable batteries/chargers have.
So basically, when it's charged full, unplug your player. Trickle charging for extended periods isin't good for the battery either.
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Yes, but arent there overcharging IC sensors in the batteries themselves? At least the good ones. I posted a link here (in the OTHER thread on this issue) to an EBay seller that is selling a quality product with overcharging IC's. And if there's still a risk with overcharging ICs, I'm wondering if you can get a brand name charger that will work in charging these players? (It woiuld have to accept a standard usb cable at least)
(Relikk: Check out that eBay link in my other post. Not all lithium batteries are created equal! The battery he is selling uses Japanese cells (but assembled in China no doubt), and not the cheap CHinese cells that have a greater reputation for swelling).