REAL 2600mAh battery mod

[reinoso]

Hello all,

As many of you, I am reluctant to give up with our loved last Qwerty survivor. Therefore, this was the moment to boost its battery life.

The selected new battery is BL-54SG from LG G2 (thanks to @no3id)

The process is very simple: disassemble the stock battery to take out the battery controller PCB and solder it to the bare LG battery.

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Charging to 100% OK.

Perfect length and height, only a bit thicker (you can see the bulging cover in the last picture)

Still testing!! Do it at your own risk!!

 

[timekiller_9]

Thanks for sharing reinoso!

It looks like you cut the upper tabs that hold the stock battery down, is that true?

Does your battery level indicator still work with this retrofitted battery?

Did you consider somehow sanding the back case to try to avoid some of that bulging?

Let us know how it goes once you field test it a bit!

 

[schmandroid]

Nice one.

Sent from my PHOTON Q using XDA Free mobile app

 

[palmwangja]

amazing,
we could use the bigger picture of your work in progress.

 

[downloader3230]

Still testing!! Do it at your own risk!!

How's your test? Do you have some good news for us?

 

[reinoso]

How's your test? Do you have some good news for us?

Thanks for sharing reinoso!

It looks like you cut the upper tabs that hold the stock battery down, is that true?

Yes, it is the only damage you have to make to the stock frame.

Does your battery level indicator still work with this retrofitted battery?

Yes, perfectly

Did you consider somehow sanding the back case to try to avoid some of that bulging?

Not enough plastic thickness to get any effect.

Let us know how it goes once you field test it a bit!

It runs perfect, battery life improved at least 40%.

 

[avicorn]

Man, you've done a great job!
One more question, for your conversion you've used some random "genuine replacement" battery from ebay for $15? I mean, any 2610MAH BL-54SG will do?

 

[kabaldan]

As it's not easy to buy a genuine LG BL-54SG here, I've decided to give LG BL-59JH a try.

It's 2460mAh, which still seems like a good upgrade and I could easily pick it up in a store on my way from work to home yesterday.
It's not so wide as BL-54SG, so it can be installed without any modification to the battery support frame.
My back cover seems to hold rather fine even with NFC antenna back in place, but there's indeed a bulge.
What's important for me is that the phone still fits to Motorola's original car holder without issues.

 

[palmwangja]

will there be any way to do this without any soldering?

 

[tobby88]

The selected new battery is BL-54SG from LG G2 (thanks to @no3id)
The process is very simple: disassemble the stock battery to take out the battery controller PCB and solder it to the bare LG battery.
[...]
Perfect length and height, only a bit thicker (you can see the bulging cover in the last picture)
Still testing!! Do it at your own risk!!

Hi

Thanks for your sharing! My Photon Q battery has been bad for already half a year. It bulged a little bit and the battery service life was getting less every day.

So I bought a BL-54SG as well 12€, so about 13 USD here in Germany. Hope, it's a genuine one. Disassembled both batteries, soldered the PQ-battery-controller to the bare LG battery and done Was slightly difficult because the positive pole of the LG battery was eating the heat of my soldering station... But now it's working
Closing the battery door was really hard. At first it didn't clamp but now it looks like it stays closed.
I have the same "marks" on the backside, but before my phone's backside was'nt flat because of the bulging old battery, now it's because of extended capacity. Something I can live with!

So thank you for your advice! I'll now test this "mod" as well

//EDIT: NFC seems to be broken now, though...
//EDIT2: OK, working again peeled this black stuf from the old battery and put it behind the NFC antenna on the new one

 

[kabaldan]

As the glue holding the previously flat (now bulged) top part of the back cover started to loosen up, I've decided to try an alternative to better accommodate the thicker battery.

This my first try on an 'old gloves leather back' hack.
The soft leather is held by the thin 3M double sided adhesive tape for touchscreen/lcd repairs.
To my surprise, it's still holding fine after a few days of use.

 

[gtmaster303]

will there be any way to do this without any soldering?

Wishful thinking...
I will pay anyone if they want to modify and send me a battery. I don't know how to solder

 

[azkay]

Well that sucked. I had a bad battery, bought a new one. Saw this thread, decided I'll get an LG and try the mod with the old battery.
New battery arrived, aaaaand snapped the PCB from the old one trying to get it off :/
What would happen if I wired the battery up just through the +/- pins? Without the two middle ones?
What are the middle pins for?

EDIT::
Goddamnit, Droid4 post linked to here and without looking properly they looked the same.

 

[tobby88]

Well that sucked. I had a bad battery, bought a new one. Saw this thread, decided I'll get an LG and try the mod with the old battery.
New battery arrived, aaaaand snapped the PCB from the old one trying to get it off :/
What would happen if I wired the battery up just through the +/- pins? Without the two middle ones?
What are the middle pins for?

EDIT::
Goddamnit, Droid4 post linked to here and without looking properly they looked the same.

You need the battery controller ic. You can't use the bare battery.

 

[azkay]

You need the battery controller ic. You can't use the bare battery.

Sorry, I didn't mean bare battery. I meant using the battery + its controller with another phone.

 

[rickywkc]

Sorry, I didn't mean bare battery. I meant using the battery + its controller with another phone.

middle pins for reporting battery temperature.

 

[huhu1312]

i not get the battery out. is there glue or something under it?

Edit: solved, there was a bit glue

 

[SophieEntropie]

also working on my motorola droid 4!

but the orignal cover doesn't fit.

 

[Flash-A-Holic]

Alternatives

also working on my motorola droid 4!

but the orignal cover doesn't fit.

I'm thinking of upgrading my Droid 4 battery. However I don't want to give up wireless charging. I have already troubles to fit Qi receiver in. So I need new back cover (can't find any) or thin battery and as much mAh as possible. Here are couple alternatives:

Comparison original battery for Droid 4/Photon Q 4G:

• EB-41: 2.75 x 1.89 x 0.151'' 1785 mAh (69.85 x 48.00 x 3,835 mm)

Alternatives:

• BL-54SG: 2.68 x 1.90 x 0.217 2610mAH (LG, 68.05 x 48.25 x 5.50mm)
• BL-54SH: 2.67 x 1.90 x 0.221 2540mAh (LG, 67.90 x 48.30 x 5.60 mm)
• BL-59JH: 2.56 x 1.73 x 0.23 2460mAh (LG, 65.02 x 43.94 x 5.84 mm)
• EB-L1G6LLUCSTD: 2.48 x 1.99 x 0.213 2100mAh (Galaxy S3, 63 x 50.5 x 5.4 mm)
• EB-B500BEBECWW: 2.72 x 2.01 x 0.170 1900mAh (Galaxy S4 mini, 69.10 x 51.00 x 4.32 mm)
• TLi019B2: 1900mAh (Alcatel One touch, 62.18 x 55.81 x 4.85 mm)

* RED color means "maybe" too big size

EDIT: New founds:

• EB615268VU: 2.66 x 2.04 x 0.240 2500mAh (Galaxy Note, 67.50 x 51.90 x 6.10)
• BV-5QW: 2.64 x 2.02 x 0.215 2420mAh (Nokia, 66.96 x 51.28 x 5.46 mm)
• EB-L1M1NL: 2.60 x 1.97 x 0.197 2300mAh (ATIV S, 66 x 50 x 5mm)
• EB535163LU: 2.6 x 1.9 x 0.2 2100mAh (I9080, 66.04 x 48.26 x 5.08 mm)
• B0PA2100: 2.50 x 2.00 x 0,203 2100mAh (Desire 310, 63.54 x 50.55 x 5.15mm)
• EB-BG357BBE: 2.72 x 2.00 x 0.165 1900mAh (G357, 69.05 x 50.9 x 4.2mm)

Too bad that I can't find any 2.7 x 1.9 x 0.16 batteries with 2000-2200mAh. I think that should be possible. Only 100mAh upgrade to 1900mAh is maybe too little.

 

[maksimherts]

Too bad that I can't find any 2.7 x 1.9 x 0.16 batteries with 2000-2200mAh. I think that should be possible. Only 100mAh upgrade to 1900mAh is maybe too little.

LG BL-T5 2100mAh
Length: 2.66"
Width: 1.78"
Height: 0.18"
I think if you remove nfc, then this battery will stand in our phone as a native)
But transplant controller will still have to do.