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Compatible spare battery [answered]

asked 2014-11-24 07:59:24 +0300

TomasM gravatar image

updated 2015-01-07 23:15:17 +0300

Has anyone had any luck with third-party batteries? Which model batteries have you tried? Does Sailfish OS, as distributed on other phones, need any changes to optimally run third-party batteries?

Jolla Customer Care has asked me to share that I've used a battery originally designed for ZTE devices (replacement part no. LI3719T42P3h644161) to boot an unresponsive Jolla handset. The battery was 3.7V, 1850mAh and roughly 64mm by 42mm by 6mm with the correct pins and safety catches to fit into the battery slot. I successfully ran a few apps without issues, but haven't been able to perform further tests.

I haven't checked if Sailfish OS does anything special with regards to battery monitoring, charging and safety. I don't know if it expects to query a controller on the battery's PCB, or has been hard-coded to standard operating conditions (temperature, peak voltage etc.) for the 22B50 from NLT Electronics.

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The question has been closed for the following reason "the question is answered, an answer was accepted" by nthn
close date 2017-03-06 13:05:34.577066



I don't think this is but for the most desperate Jolla users since the form factor of the ZTE battery is different. I wish that Jolla would finally start to sell spare batteries. After more than a year, this is just ridiculous.

Venty ( 2014-11-24 13:58:09 +0300 )edit

That's exactly what I think. The phone is still advertised with an user-replaceable battery. But how should the user replace a battery when they don't sell batteries...

Fellfrosch ( 2014-11-24 15:33:13 +0300 )edit

Fellfrosch - by waiting until it explodes, then the user sends the now heavily damaged phone to Jolla, who replace it with a new phone (and obviously new battery).

midnightoil ( 2014-11-30 02:42:33 +0300 )edit

Has anyone run into a battery showing correct temperature readings for the battery in your tests?

simo ( 2015-09-03 15:05:55 +0300 )edit

time to close the question ?

pawel ( 2016-11-01 20:43:43 +0300 )edit

20 Answers

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answered 2014-12-04 15:09:10 +0300

eric gravatar image

updated 2014-12-04 15:24:34 +0300

Dear Community members,

After all these months of discussion about Jolla batteries, we would like to provide an official comment here:

We never recommend using a non-Jolla approved battery on a Jolla smartphone – there might have been a misunderstanding in previous communication (TomasM discussion with Care), and we apologize for that.
There are several reasons for this, but most importantly: using a non-Jolla approved battery on a Jolla smartphone might cause damage to the device. And, if this happens, it is a warranty voiding action. So, if you choose to do this, it is at your own risk, and we can’t promise warranty service if your device gets damaged as a result of doing so.

Some good news here too: we will have a limited batch of spare batteries coming on sale to the Jolla Online Shop very soon. We will announce the availability first to you, TJC Community members, before promoting them elsewhere. It's not a big batch, so you will have to react quickly if you want one.
We unfortunately do not have further information on later availability at this stage, but we will keep you posted.

So stick and stay with us for upcoming news!

Jolla Team

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Thanks! That was very needed. But still hoping for a general availability rather sooner than later!

forgrimm ( 2014-12-04 15:52:59 +0300 )edit

I have no clue why it is so difficult to get that batteries. But Jolla is really amazing. I was at the point where I thought, there will be no spare batteries anymore. But Jolla again proved that they are listening. Announcing just a limited batch seems to show how hard it is to get these batteries. So Dear Sailors, I think you now have a problem with TJC, I hope your servers will withstand the run for the batteries ;)

Fellfrosch ( 2014-12-04 16:10:34 +0300 )edit

can You make, just right now, batch twice bigger? :)

tuniek ( 2014-12-04 16:56:47 +0300 )edit

Can you have a battery manufacturer build some more batteries? They are dirt cheap to produce, and many companies will do it for as low as 100 pieces.

Giacomo Di Giacomo ( 2014-12-04 18:03:07 +0300 )edit

This kinda sounds like a demand-raising tactic. "We unfortunately do not have further information on later availability at this stage," - I dont _really_ need a second battery (or might in some special situation, but not usually), but now i'm considering getting one and putting it in the fridge for when the first one eventually fails...

urjaman ( 2014-12-04 18:16:34 +0300 )edit

answered 2015-07-29 16:53:14 +0300

pawel gravatar image

updated 2015-08-11 20:08:02 +0300

today i did some browsing for batteries based on voltage and size

these two seem promising


[edit 4.8.2015] forget the first one, this one (or any other HTC Desire 310) fits:


[edit 11.8.2015] using the battery above since one week. reaches around 93 to 94% capacity. CSD battery test is ok. with situations turned on (turning on flight mode overnight) i can easily do two days without charging. i'd say battery performance is similar, maybe slightly worse than the 6 months old original battery.

details of jolla battery: 3,8V 50,6 x 63,5 mm and 5.1 thick

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I believe we have a winner here. The Desire 310 battery looks exactly like the Jolla one. Same shape of the keys, same size of the contacts. I think I am ordering one to test it.

Giacomo Di Giacomo ( 2015-07-29 17:34:03 +0300 )edit

Very promising. Order confirmed!

eson ( 2015-07-29 19:15:04 +0300 )edit

great ! tell me the result my jolla is currently in pieces waiting for spare speakers

pawel ( 2015-07-30 01:23:46 +0300 )edit

I took one from AliExpress, it's going to take a month before I get it. I will post the results of the test.

Giacomo Di Giacomo ( 2015-07-30 02:23:30 +0300 )edit

how much is it? akku-land would charge 15 Euros incl. shipping

pawel ( 2015-07-30 13:07:17 +0300 )edit

I took one of the golden compatibles; they are not great quality but they are cheap, so I can test if it works before purchasing better ones. It's about 8 EUR shipped.

Giacomo Di Giacomo ( 2015-07-30 13:20:24 +0300 )edit

Yeah! I just received mine from here: Ebay, plug + play, perfect fit, Jolla is loading now. Pawel and Giacomo, you are my heroes for today.

Robomike ( 2015-07-31 15:08:32 +0300 )edit

Please share what you think about it in terms of duration.

Giacomo Di Giacomo ( 2015-07-31 15:17:05 +0300 )edit

@Robomike Thanks! Can you post CSD Tool screenshots testing this battery?

simo ( 2015-07-31 17:00:02 +0300 )edit

Pictures: click for gallery here Have 2 devices, so I ordered 2 batteries. New battery on Jolla #1 (formerly with nearly unused batt.) was delivered with (so said Jolla) 53%. Started loading with a strong loader (not the original from the box), HungerMeter tells -4000 mW at the beginning, down to -550mW at the end. It lasts 1h38m until LED starts blinking slow: 100% reached. (!!!) Results of csd-tool see in the picture set. Jolla #2 loads a bit stronger, started with 55% and -4000mW, is now on -1000mW, but showing 100%. LED not yet flashing. This device has had an old and weak battery before and the loading characteristics depends on the saved values? (My opinion). I will unplug now and use the device some hours. - Update: started flashing after 1:45, screenshots csd added to gallery end.

Robomike ( 2015-07-31 17:09:27 +0300 )edit

answered 2015-08-04 09:23:15 +0300

eson gravatar image

updated 2015-08-11 15:01:03 +0300

I can now confirm this Acculand battery a perfect match. The battery brand is Powery.



Today I received my second replacement battery and both me and @hps can confirm this BatteryUpgrade link a match. A bit more expensive though, even with "free" shipping.

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yes, agree on that.

meldolion ( 2015-08-04 09:46:43 +0300 )edit

@eson, can you tell me what is the voltage charging max.? 4.35V or 4.20V?

carmenfdezb ( 2015-08-04 16:08:10 +0300 )edit

@carmenfdezb 4.35V, or I wouldn't call it a perfect match. ;-)

eson ( 2015-08-04 17:08:12 +0300 )edit

Wow!!!! Great!!! Thank you so much, @eson!!! I found this battery in eBay too: http://m.ebay.es/itm/231636047367

carmenfdezb ( 2015-08-04 17:33:53 +0300 )edit

Yup. Have one of these too. Perfect match and very durable. I even have the impression, the Akku-Land battery is keeping cooler when charging, compared to the original from Jolla.

Venty ( 2015-08-10 10:17:06 +0300 )edit

answered 2014-12-02 16:56:33 +0300

remjey gravatar image

There is an answer here https://together.jolla.com/question/67961/not-a-question-just-found-compatible-spare-battery-for-jolla/

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answered 2015-06-11 06:49:07 +0300

simo gravatar image

updated 2015-06-11 06:55:15 +0300

Good morning! I was browsing Taobao, and saw some familiar looking products from Hong Kong. Did I just found compatible spare batteries? Could they have any spares to ship to Europe if they fit into the standards here? (Would fit my standards) Not sure if this is bad news or good news, but hoping for the latter ;)

Here's the link to the shop, in case someone is interested. Not sure if the batteries are sold also separately, or only bundled with the phone. Latest comments are from few days back, so not an outdated page at least (there are some of those as well on Taobao)

image description

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At least this is a visible explanation for the shortage.

lakutalo ( 2015-06-11 10:43:07 +0300 )edit

answered 2015-08-11 21:33:20 +0300

Moth gravatar image

updated 2015-08-11 22:41:10 +0300

I use this one for a week now without any problems (Guess I'm not the only one). Provider: Amazon.de. Price 14.99€, 1€ shipping.

My routine is 2 days without charging...

battery01 battery02

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answered 2015-08-14 01:29:31 +0300

marsch gravatar image

updated 2015-08-14 15:52:06 +0300

Bought a battery this evening at http://www.batteriezentrale-muenchen.de/. "Replacement for HTC BOPA2100/DESIRE 310" fits perfectly well and also meets the specs completely.

It's a brand-labelled product of this shop, which is specializing in batteries of all types and known not to sell crap.

EDIT: Price is 19,95 €

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answered 2015-06-27 17:13:18 +0300

simosagi gravatar image

updated 2015-06-27 17:19:14 +0300

I may have a lead on a battery similar to the one used by Jolla, but I have not found it yet.

Googling for the Jolla battery name 22B50 one of the results was a page from certipedia.com, where TÜV Rheinland (German certification company) certificate JPTUV-055440 has been granted to a Li-ion battery with model designation:

1) 22B50 2) H15264

The second model number H152264 seems to belong to the battery of a Venezuelan smartphone, Siragon Sp-5100, released around October 2013.
Here is one photo of the back of this phone http://farm9.staticflickr.com/8557/10259966135_e326b8bdea_z.jpg image description

Here are the listed specs:
3.8V 2000mAh Li-ion 7.6Wh
Charging voltage: 4.35V

Seems pretty similar to the Jolla one, although apparently a tad lower capacity (2000 mAh vs 2100 mAh). However, I wasn't able to find yet whether that battery is available anywhere, except few announces on some Venezuelan 2nd-hand websites (note that the phone seems to be available only on the Venezualan market, so we are not talking about big numbers).

P.S. Note that also the Siragon Sp-5100 has a 4.5" IPS display, 540x960 pixels, so probably behind there is the same ODM as the Jolla phone.

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Do they sell this phone with "user-replaceable battery" too?

simo ( 2015-06-27 18:56:58 +0300 )edit

This is rather interesting, as the Siragon phone apparently suffers from the same reboot/shutdown problems as its inwardly identical twin sister. The solution found in Venezuela seems to involve cutting off one of the three phone-side contacts. o.O https://www.youtube.com/watch?v=NIiVNLVPHjE I know it's the wrong thread, but has anyone tried that on their Jolla yet?

randomstringofletters ( 2015-06-27 19:30:02 +0300 )edit

Also rather interesting, they seem to manufacture TB-5000 and TB-7000 tablets (released 2014) with 7.85" IPS display (like on Jolla Tablet) . The design is quite different both in phone and tablet, but a later model TB-5200 has Intel inside and lot of similarities. Well, this is about battery for the phone... for that, I found this image: image

simo ( 2015-06-27 20:00:17 +0300 )edit

instead of cutting of the 3rd contact (the right one) one could try to put an insulator in between

pawel ( 2015-07-29 14:12:07 +0300 )edit

here we go: http://articulo.mercadolibre.com.ve/MLV-443638823-bateria-siragon-sp-5000-original-_JM not sure if they ship out of venezuela, seem they do not, you need an vez. passport ;-) and it was pricey too

my search string on google: Siragon Sp-5100 bateria

pawel ( 2015-07-29 14:17:05 +0300 )edit

answered 2015-08-05 08:06:52 +0300

this post is marked as community wiki

This post is a wiki. Anyone with karma >75 is welcome to improve it.

updated 2015-08-05 08:09:07 +0300

pawel gravatar image

results of the replacement battery from akkuland.de (P9D310)

reached 4.29 V and 94.41% according to CSD battery test (on resistance) passed the one on my original failed ;-)

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Does that mean it charges in your Jolla?

Tom Yea ( 2015-08-05 12:34:09 +0300 )edit

yes and reached 100% i am now using it since yesterday

of course there might be better 3rd party spare batteries for the HTC Desire 310 out there

pawel ( 2015-08-05 18:34:54 +0300 )edit

answered 2015-09-03 14:45:26 +0300

nick75 gravatar image

updated 2015-09-03 14:45:50 +0300

Test: compatible batteries for Jolla Phone


5 Batteries tested:

New official Jolla battery.

"compatible" Polarcell battery for HTC Desire 310, 3.8V 2100mAh.

"compatible" Gold battery for HTC Desire 310, 3.8V 2450mAh.

2 used official Jolla batteries for comparison. Both used for 20-21 months

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Nice test, but the linked "X-Longer" by pawel (Jul 29 '15) is missing. I ordered another one, offered as "vhbw" brand, Model: "FOR B0PA2100", which claims to be compatible for HTC Desire 310, D310, D310f, D310w, Desire V1. link image

Actually I got the X-Longer Model as shown in pawels comment-link to batteryupgrade.at. This report is about the "X-Longer™" Model No. CS-HTD310XL, Capacity: 2100mAh 7.98Wh, 3.8V, Part No: B0PA2100link image

Electrically it seems to be 100% identical to the original JollaPhone Battery, Model 22B50 by NLT ELECTRONICS. But I haven't done any qualified metering, just checked with CSD-Tool. Also the reported battery-temperature seems to be accurate. It stayed low while charging (25.9°C) with the original power supply.

Mechanically, there's a very small difference in the height of the battery pack. I added 7 layers of household-common adhesive tape (like Scotch produces e.g.) to the bottom (simply cropped with scissors). Without that tiny socket, contact was lost sometimes and the phone rebooted.

Conclusion: According to nick75's metering report, the "Polarcell for HTD Desire 310" is on par with the original regarding capacity, but temperature reading doesn't work. My experience is that the X-Longer CS-HTD310XL also is on par regarding capacity, and also provides correct temperature reading. Just remember to make it fit more tighten by adding some layers of thin adhesive tape to the bottom-edge of the pack.


Mano ( 2015-12-21 17:26:54 +0300 )edit

Update: It turned out that the temperature readings are fake. It's always between 25 and 25.9°C while inverting physics. The colder the battery, the higher the value (maxing out at 25.9). That's true for all 3rd-party replacement models i tested so far. But not, for the original HTC B0PA2100. They are specified with 2000mAh resulting in 7.6Wh instead of 2100mAh/7.98Wh, but the temperature reading matches real numbers!!!

Also, the original HTC fit's mechanically perfect, not like all other 3rd-party compatible packs, which are ~0.5m shorter (and need some adhesive tape onto their socket to provide reliable electrical contact) Just for the records...


Mano ( 2016-02-25 13:24:44 +0300 )edit

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Asked: 2014-11-24 07:59:24 +0300

Seen: 21,094 times

Last updated: Nov 01 '16