3rd party extended Battery guide

3rd party extended Battery guide

We have put this guide together to help people who opt to use 3rd party high capacity batteries that can be found on various online marketplaces.

List shows compatibility in terms of fit and what depth case back is required (thick or thin) to achieve correct fitting.

Please note: This article is NOT a recommendation for these batteries, there seems to be a very high level of variation in the quality, capacity ratings (actual & advertised) and more importantly we have seen different size batteries supplied for the same advertised product!!

So you have been warned – this article is for information only and the said information is provided with no warranty or promise of accuracy. Your results may not reflect our findings!

There are couple of more batteries I have seen, and once I have managed to obtain some samples this guide will be updated!

Fitting Guide (see numbered notes below)

Battery sold as: iFlash-Quad iFlash-Dual iFlash-Solo iFlash-Sata iFlash-CF
1800mAh (5) Thick back Thick back Thick back Thick back Thick back
 2000mAh Thin back Thick back Thick back (2) Thick back Thick back
 1900mAh Thin back (1) Thick back Thick back (2) Thick back Thick back
 3000mAh (3) Thick back Thick back Thick back Thick back Thick back

Battery Specifications (for samples we obtained)

Battery Image Size (mm) + volume Observations / Notes
OEM Battery 550mAh (Thin) OEM Battery 550mAh 20 x 45 x 6 (5.4cm³)
Weight: 12g
Original battery used in thin iPods (e.g. 30Gb/120Gb/160Gb), marked as 2.04W/hr = ~550mAh
1800mAh Battery 1800mAh 46 x 53 x 5.3 (12.9cm³)
Weight: 32g
Marked as 6.8Whr 3.8v on cell (which is 1790mAh), but actual capacity is probably nearer 1600mAh (4)
2000mAh Battery 2000mAh 46 x 90 x 4  (16.5cm³)
Weight: 37g
Capacity based on volume estimated at 1700mAh (4)
1900mAh Battery 1900mAh 54 x 80 x 3.8 (16.4cm³)
Weight: 35g
Capacity based on volume estimated at 1700mAh (4)
3000mAh Battery 3000mAh 57 x 83 x 3.6 (17.0cm³)
Weight: 39g
Capacity based on volume estimated at 1800mAh (4)


Remove frame protusion for 1900mAh battery

Remove frame protusion for 1900mAh battery

(1) When fitting with a thin caseback the protusion on the iPod’s inner frame needs to be removed (as pictured).

(2) We have had some samples of these batteries which actually fitted (read: tight squeeze) in a thin (5g) caseback & the iFlash-Solo.

(3) This battery is larger than the iPod’s inner frame, it will ALWAYS require a thick caseback. This battery can be awkward to fit as it interferes with the headphone jack assembly, you may need to lift the headphone ribbon away from the rear case to allow the battery to slide under the headphone jack assembly.

(4) This is based on current energy density of li-ion based battery cells, it is a very approximate (gu)estimate as the volume measurement is based on external size of the battery pack and not the actual cell size. Other factors which may effect the accuracy is the method and quality of the cell construction and wrapping. However, it is a great method to see relative capacity claims when comparing by volume of the battery cell, of course the chemistry of the batteries need to be the same.

(5) We have seen this battery sold as 1800mAh and as 1600mAh, all examples we have seen have been a similiar size. At 5.3mm thick this battery will always require a thick caseback, and will not fit with the original HDD.

**article republished 24/02/17 – to add 1800mAh battery, and oem battery
**article original publish date was 15/06/2016

100 thoughts on “3rd party extended Battery guide

  1. Spooked

    I have done to love this site….I fixed my dads 7th generation hard drive and he can’t stop thanking me. I did it once, now I want to do it to my 80gb 6th generation classic. The hard drive doesn’t worry me, I’ll be using a Solo, but I do know my battery could do with being replaced. I’m very new to all of this, but is there any place in the uk to order a new battery from reliably? And also, am I reading this right, in Wanting a 550 Battery as I do just want a take out replace, I do want to be doing any adjusting etc?

  2. Zedders

    Anyone know if it’s possible to get bigger capacity batteries for the 3rd and 4th gen iPods?
    There are all kinds of lithium batteries available but I haven’t found one specific to the earlier iPods which use batteries with three wires (red, white & black).

    1. Dan

      Hi pandit. I purchased the same battery as in your link but it seems too long, there is t enough room for it to fit between the hold switch and 13 pin connector at the bottom. How did you manage to squeeze into a slim rear case?

  3. LukeNukem

    Just installed an iFlash Quad, and a battery sold as 1950 into a slim 7th gen.

    Works great! Currently using 2x 256GB Samsung EVOs.

    Thing is, it was a TIGHT fit. I had to apply some decent pressure to close the case. Will this be alright? I obviously dont want to damage anything, but wanted to ask if anyone else has experienced such a tight fit with their 7th gen?

    Also my first time opening a 7th. What a pain. I’ll be ordering replacement back and front for when I want to close it permanently.

    1. Vestan

      The main problem I had forcing a 1950mah into a slim case was some damage to the headphone connector and in fact i permanently damaged a board. I found the 2000mah battery, which is longer and thinner, much easier to fit and close.

  4. Costas

    Thanks for the reply!
    You r right about it, But I did it anyway.
    -I contacted 3 sellers, asking for the exact size (to the last mm (3D)) from the bat. they were selling.
    One of them will fit.
    it won’t be 3000mah I know, but I’ll gain 200-300mah (that’s something / almost half of the original bat.).

  5. Pete

    You can’t fit a 3000mah battery in a slim case. But the labels for batteries are all arbitrary anyway – the ‘3000mah’ isn’t really 3000mah, it’s just a tiny bit greater volume than the 2000 or 1900 ones, and doubtless has just a slightly higher capacity, accordingly. If you want a ‘3000’ battery for bragging rights just stick a label saying ‘3000’ on a ‘2000’ one and use that!
    Some suppliers seem to send slightly different sized batteries than the ones listed. So you might find a supplier offering ‘3000mah’ batteries that are actually about the same size and capacity as the 2000 or 1900 ones. Those will likely fit. Safer to just buy one listed as 1900 or 2000, those are more likely to be the right size to fit a slim back.

  6. Costas

    I’ve already placed an iflash solo with 256gb (+original battery) into one of my ipods which works great for more than a year and it’s going to live in my car from now on.
    I’m building a 5th gen video 80gb now and I’ve made it so far to fit perfectly in a total black aluminium slim 7th gen case with the help of a Dremel and 7th headphones jack /take a note that the 7th gen clicker won’t work well, you need the 5th gen clicker and sandpaper 1000/2000 to take the edges as it pops out from the case 0,25mm.
    I’m planning to put an “iFlash-Quad” and a 512gb Sandisk extream pro to start with…
    BUT I need some help with the battery. It seems that some people have managed to put a 3000mha (which is what I want) in a thin back/case while you say it needs a thick one, plus you say it’s 57mm x 83mm x 3.6mm while elsewhere they say it’s 55mm x 70mm x 40mm (same battery pics and codes – same battery), so… what is right and what is wrong?
    If you can please let me know if I can use a 3000mha battery with iFlash-Quad and a thin back/case.

    1. Pandit

      Answer to Matthew

      (1) I opened the Ipod 7th gen
      (2) I Exchanged the HD with a I-flash Quatro with a 256gb microSD
      (3) I Exchanged the old 650mAh battery with the new 2000mAh battery. I removed some plastic from the battery to make the flatcable longer and connected the flastcable to the Ipod
      (4) I closed the Ipod.

      It was a very easy Job. Opening the Ipod can be difficult, but with the right tools and this instructions (https://youtu.be/4AF1Pjbwc6c)
      Good luck Pandit

  7. Hannibal

    Help!!! I am performing a ‘big’ battery upgrade on a 7th Gen. This requires a new (thick) back cover with a new hold switch/headphone jack flex cable. The tab on the flex cable 1/2 inch from the switch has an exposed conductive pad…. which is normally presses against the metal case by the original battery and lightly glued from the factory. This appears to be a ground. The new battery fits differently than the original and does NOT press the tab to the case. As such, should this tab be glued with electrically conductive adhesive? If not, why is the pad exposed?

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