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What is a good battery replacement for the stock battery in Fiio E11?

post #1 of 45
Thread Starter 

My battery just died and I would like to know what battery is there to replace it with? what mah should I loook for? THer eis one on eaby called BL-5B. is ti good? how long does it last? i need one that will last 18 hours.

post #2 of 45
You can either get a genuine one from Nokia or get this one from eBay. It is not really 2050mAH but more like 1400mAH. Still it is longer lasting than the stock version.
post #3 of 45
Thread Starter 

what about this one? is it really 2430 mah?

 

 

post #4 of 45
The gold one is more or less known to have smaller capacity than the stock one.
post #5 of 45
Thread Starter 

i don't disagree but would you care to prove this?

post #6 of 45
Quote:
Originally Posted by Stealth3si View Post

i don't disagree but would you care to prove this?

Read the negative feedback of that seller.

Plus, you have to break physic's law to fit that much Li-ion into that small a space.
post #7 of 45

I bought this battery:

 

http://www.ebay.com/itm/260796737435

 

And this Charger:

 

http://www.ebay.com/itm/140674698715

 

I like this charger over the type the Micca Store sells because it has a LED window to show the battery is charging, and fully charged not just a light that blinks on and off.

post #8 of 45

Unfortunately FiiO went with one of the worst battery types in existence, as if they went with the BL-5C type, they would get 2-3 times more battery runtime for a battery that's around 1mm taller. Never understood that line of thought and that was never explained by feiao. Unfortunate.

post #9 of 45
Thread Starter 

According to the instructions of the seller, 

 

 

 

 

Quote:

 

> The battery must be fully recharged before use.

> A temporary short capacity of new battery will be resulted from not used for a long time, it is normal, the total capacity will be reinstated via used for 3-5 times.

When first get the battery, use it out, charge for 10 hours for the first three times, use it out again, then it only need to charge about 5 hours for normal use.

 

 

 

1.) Can I charge the 2050mah bl-5b in the e11? If the red light turns off does this mean the battery is fully charged?

 

2.) When I first get the battery, do I charge it 10 hours or do I use it out then charge it 10 hours?

3.) After I charge it 10 hours for the first time, do I use it out again, charge for another 10 hours, then use it out again and charge for another 10 hours? Next do I need to use it out before I charge it next time?

4.) Do I fully recharge it before every use?

 

 

post #10 of 45
Quote:
Originally Posted by Roller View Post

..Never understood that line of thought and that was never explained by feiao. Unfortunate.
It is probably because BL-5B is the most popular battery in China and used by other gadgets there as well. It is a choice of convenience.
Quote:
Originally Posted by Stealth3si View Post

According to the instructions of the seller, 

1.) Can I charge the 2050mah bl-5b in the e11? If the red light turns off does this mean the battery is fully charged?
2.) When I first get the battery, do I charge it 10 hours or do I use it out then charge it 10 hours?
3.) After I charge it 10 hours for the first time, do I use it out again, charge for another 10 hours, then use it out again and charge for another 10 hours? Next do I need to use it out before I charge it next time?
4.) Do I fully recharge it before every use?
1) Yes. When the red light is off, the battery is fully charged.
2) You can charge it right away, then use it out. The point is to 'cycle' the battery capacity, how you do it is less important.
3) You can repeat it one or twice, then it should be fine.
4) You don't have to, but it is usually considered better to recharge Li-ion as often as you can. But once in a while (say every month or two), you will want to cycle the battery to keep it in an healthier state.
post #11 of 45
Quote:
Originally Posted by ClieOS View Post


It is probably because BL-5B is the most popular battery in China and used by other gadgets there as well. It is a choice of convenience.


 

Might be in China, but on the rest of the world, the standard for its kind is the BL-5C, costing the same, having a very similar form factor, minimal weight differences and far longer battery runtimes. Basically it was one of the worst design decisions FiiO took regarding E11. At this point in time I expected portable amps to provide longer battery runs, as in at least an entire day (24h), just like the old faithful PA2V2 can (around 100h).

post #12 of 45
BL-5B is 890mAH as listed by Nokia, while BL-5C is 1020mAH. That's only a difference of less than 15%. From the past experiments I did on various E11's batteries, I know E11 will roughly consume 55mA per hour in regular use (high power mode, high gain, Lv2 bass boost. Volume around 3 to 3.5 / 9 with a 32 ohm dynamic IEM). So the stock E11 battery (rated 800mAH) usually last around 14.5 hours or so - even with genuine BL-5C's 1020mAH capacity, it will run about 19 hours or so (in linear estimation, might be shorter if voltage isn't dropping linearly). I won't call that 'far long'. Though it longer, it is definitely not going to be 2~3 times longer than BL-5B unless Nokia is packing magic dust inside it. The aftermarket BL-5B battery (the 2040mAH one) I mentioned earlier has been tested to have roughly 1400mAh in capacity and an estimated run time of around 24 hours. That is already better than the stock BL-5B and BL-5C.
Edited by ClieOS - 2/29/12 at 10:43pm
post #13 of 45
Thread Starter 

should i stop charging the dead battery now?

post #14 of 45
Get yourself a multimeter (or volt meter) and measure the voltage of the battery, see if it is just under 2.7V. If it is, it could be that the protection circuit on the battery that stop you from charging it. You might have to force charge it (* charge it for a long time, like 24 hours or so) to revive the battery, if it is revive-able. If the battery is stone dead after long hours of charging, then you can pretty much throw it away.

In the future, you need to remember you can't let Li-ion battery's voltage drop too far off from the minimum (which will be 2.7V, but the protection circuit might cut you off under 3V). Li-ion must maintain a minimum voltage to be functional., that's why it is advisable to recharge your battery often.
post #15 of 45
Thread Starter 

 



Quote:
Originally Posted by ClieOS View Post

Get yourself a multimeter (or volt meter) and measure the voltage of the battery, see if it is just under 2.7V. If it is, it could be that the protection circuit on the battery that stop you from charging it.

i don't have one unfortunately.
 

 

Quote:
You might have to force charge it (* charge it for a long time, like 24 hours or so) to revive the battery, if it is revive-able. If the battery is stone dead after long hours of charging, then you can pretty much throw it away.

i'm recharging it 35 hours so far and red light is still on..i'm guessing it's really dead...:(

 

 

Quote:

In the future, you need to remember you can't let Li-ion battery's voltage drop too far off from the minimum (which will be 2.7V, but the protection circuit might cut you off under 3V).

do i need to buy a volt meter and how often must i use it to monitor a battery?

 

 

Quote:

Li-ion must maintain a minimum voltage to be functional., that's why it is advisable to recharge your battery often.

I recharged it 1-2 times a day. ever since I received the e11 and its stock battery (one month ago) there were a total of 3-4 times where i 'cycled' the battery, that is, i accidentally used it out (because i forgot to recharge it that day and it drained) and then I immediately fully charged it. I used it every day since I got it.

 

 

1.) FYI, I never turn off my e11. it's either on because I'm listening to it or it's on while it's recharging. Should I turn it off when it's recharging? And my e11 usage is high mode, low gain, boost level 2. How many battery hours would that allow per session?

 

2.) Further, every day I take a couple of breaks, during which i recharge it in the E11 by plugging in the usb charge cable. normally the charge would finish before i get back since i haven't used it long enough. Sometimes though it's still recharging it when i get back -- should i let it finish recharge or can i interrupt the charge to resume usage? and is there anything important i should know if after I interrupt the charge?

 

3.) And every night I fully charge it (the red light is off by the next day.) At this point, should I unplug the charger cable and the e11? I have the e11 turned on 24/7 since i can't be bothered to switch it on/off and go back to my normal listening volume every time I use it.


Edited by Stealth3si - 3/1/12 at 1:59pm
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