eteina
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- Apr 30, 2016
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Anybody has the full Fiio E12 comparison charts that were found on Fiio's website?
I bought my E12 in summer 2013. Was working quite nice, until about summer of 2016 when Ii noticed degrading battery life (about half of what it used to be). I have not been using it since september 2016 I guess. Just kept it in a drawer.
Yesterday I wanted to used it, but it was completely dead. So I plugged it in, red LED starts "breathing", but after few seconds it starts blinking rapidly. I have tried many different cables and adapters as well as connecting to computer USB. Also reset button multiple times. It just keeps flashing rapidly. Only if i turn the unit on, while connected, the red LED starts "breathing" again and E12 can be used. When I unplug cable, it switches off immediately, when I turn unit off, it starts flashing rapidly again. I tried to leave it charging for very long time with same results.
Warranty is expired. Any ideas what can be done? Anyone encountered same issue?
OK, stakarVN - I broke the code Wednesday: all the images online of the battery wires show a single hard-soldered red and black wires - mine, like yours, has two thin black + two thin red terminated in a connector, which was introduced in later production. I dragged out my "needle" probes and determined that the two black are actually parallel - acting as s single conductor; same for red. In 3 exchanges with FiiO in the past week, I'm pretty certain that the battery (mine is now ZERO volts) is, indeed, probably an 11.1V. I'm convinced that dimensions & packaging won't permit 3 3.7 pancake cells stuffed in the E12 chamber, which ostensibly could be connected in series. So, since my E12 worked just fine until the battery failed, I'm gonna string 3 18650's in series and feed it into the case through a grommet. This won't work well for portability, but mine just sits next to my easy chair. In hindsight, I'm surprised they even fooled around with the "serviceable" connector, as difficult as it is to find a replacement battery & just access the battery itself.I was (am) in the same position a year ago and didn't follow up (didn't buy new batteries).
I think the statement about 11V (was in every review at the time of release) is true but don't know how it is done.
But... look at my photos Wires explained right ?
Now you got me a-thinkin'. I'm "assuming" I'd use the existing charging circuit in the E12 - it should still be addressing 11.1V charging [3 x 3.3V in series, as FiiO certainly packaged the original battery] whether 3 pancake cells in series or 3 tubular devices [18650's] - the 18650's traditionally take forever to charge in my experience, but overnight should give me plenty of juice to play with. I was pretty certain, until your latest post, that 3 pancake cells would surely be too thick; however, if I can flatten them enough, the dimensions would "just fit", thickness-wise. The other dimensions look OK, too, for the 1st & 3rd one you list. Shipping costs more than the batteries themselves, but I'm about to order up a few anyway. Thanks for re-suggesting these pancakes! [I'm thinking thickness of three might be OK if I get rid of the anti-rattle strips on one side & the incredibly sticky double-back film on the other]It would be interesting to see your 18650 in series.
But why wouldn't you go pancake style ? I looked on AliExpress. You could go with three of
503035 3.7v 500mah Lithium
303450 3.7V 1000mAh Lithium
302530 3.7v 500mah Lithium
I would prefer the bottom ones because they give you a lot of extra space. You could then easely combine the different leads as I described with the middle battery before you connect them to the charging board (which is now connected to dead batteries - the one with printed dimensions 47*10*0.8 in my photos).
So either way is doable I think. Only thing is I don't know how you would go about charging your 18650's ?
edit : to clarify, I would never put 3 cells in series in combination with that charging board. The outer 2 would be connected each with the terminals on one (length) side of the board. One terminal of the middle battery would then be connect with a lead of one of the outer ones, and the other terminal of middle battery would be connected with a lead of the other outer one. You can look at the paper tape (on the middle battery I loosened it to the middel and folded it up) to know how the three batteries are oriented relative to one another and how to connect the leads.
edit2: I keep forgetting you have this dead battery pack also
I don't get what you mean. Do you have another charging board ? You would need to solder 4 contacts, not 2. So you only get "series" on the output of the board where the black and red wires depart. I think the biggest concern is the internal impedance of what you're charging and I think that's why they do 2x(3.7 + (3.7/2)). Sorry to keep saying this but I wouldn't like your board to burn out.3 x 3.3V in series, as FiiO certainly packaged the original battery