iFixit - Answers With Device "Battery"

10000mAh Mi Power Bank 2S: Charging pin port broken

Tue, 31 Mar 2026 08:39:46 -0700

Charging pin broken

⟐ Commented March 31, 2026 at 8:39 MST

10000mAh Mi Power Bank 2S: How to repair USB port

Mon, 29 Dec 2025 09:11:03 -0700

My power in take power no out put in USB port

⟐ Commented December 29, 2025 at 9:11 MST

Power Bank: پاور بانکم شارژ میشه ولی گوشی رو شارژ نمیکنه

Wed, 16 Jul 2025 18:50:07 -0700

مشکلش از کجاست

My power bank charges but doesn't charge my phone

What's the problem?

⟐ Edited July 16, 2025 at 18:50 MST

Battery: Why is my projects 12volt 6amp fully automatic battery charger not wor

Thu, 03 Jul 2025 01:32:33 -0700

How do I fix it

⟐ Commented July 03, 2025 at 1:32 MST

Redmi Powerbank 20000mah(PB200LZM): Why is power banks batteries swollen

Wed, 27 Nov 2024 16:40:47 -0700

What to do if my power bank batteries are swollen.?

Power Bank: How to open RoHS PC3 power bank

Wed, 20 Nov 2024 11:19:49 -0700

I found a RoHS power bank, the i/o board is dislodged - what tools are required to open the housing - secure the board back into place - seal it ready for use?

I am speculating I require a heat gun, and super glue.

⟐ Edited by author November 20, 2024 at 11:19 MST

Power Bank: Why is my battery pack self-discharging?

Sat, 09 Nov 2024 06:14:54 -0700

I have a 4Patriots D320 powerbank that was sitting unused and not charged for a couple of years. It would not charge, so I removed the battery pack that consists of 4 series connected groups of 6x 26650 cells in parallel with a charge/discharge PCB. One of the groups was totally dead. The other groups were all about 3.2V. I removed the dead group. The rest are still connected to the charge/discharge PCB.

I charged each group individually with a simple smart Li charger at its max of 1A. They all charged up to ~4.15V. After a day, the voltage on all the groups was down to ~3.5V. I recharged and after 8 hrs they are ~3.8V.

Is this what I should expect, or is something else happening?

Power Bank: How do you fix the input to my portable Yaber power station

Wed, 09 Oct 2024 20:58:05 -0700

My input to charge my power bank broke. It's a Yaber car jump starter, 2000A. How do I repair and replace the part?

Power Bank: I'm using a Virgo power back but I think the work of it is not enough

Tue, 30 Jul 2024 17:15:31 -0700

Mophie power reserve: Why is my power adaptor overheating

Sat, 19 Aug 2023 06:23:55 -0700

Why is my power adaptor overheating

tvv s1000 portable power station: TVV S1000 Portable Power Station not charging

Tue, 25 Apr 2023 14:26:36 -0700

I bought this item on Amazon in June of 2022. The seller has since gone out of business. This is a portable power station that can be used for all sorts of things and it is really handy to go camping with and stuff. (Check out my review video here: https://youtu.be/4ZMCGJEPcdw)

My question is this: A couple of months ago, I think my sons may have dropped the unit and now when I have it plugged in to charge, it will not charge. It recognizes the charge cable as being plugged in, but it will not charge. Is this something I can fix?

Battery: Battery charger not charging from one slot

Thu, 01 Dec 2022 05:20:54 -0700

I have a intercept battery charger MW6278

Has four battery slots with smart tech.

1 off the slots tells me every battery is bad there for will not charge battery I cleaned the terminals but still not working.

Help please is this easily fixable. Thanks

⟐ Edited by author December 01, 2022 at 5:20 MST

Vax OnePwr Battery: How to reset 2 LED fault code after cell imbalance

Sun, 20 Nov 2022 14:25:25 -0700

Battery failed with 2 LED pattern 1-0-1-0. Diagnosed that one cell was at 3.3V, other 4 at 3.6V. so Rebalanced all cells to 3.7V using balancing charger, but fault code persists, like it's been latched on. Any idea how to reset the processor to recognise that the cells are rebalanced ?

⟐ Commented November 20, 2022 at 14:25 MST

Power Bank: لماذا اداة الشحن الخاص بي لايشحن الجوال لكن فقط ينقص الشحن

Sun, 30 Oct 2022 18:58:05 -0700

باور بنك الخاص بي لايشحن

Power Bank: Power bank charges phone slow

Mon, 17 Oct 2022 21:53:19 -0700

I have a Cygnett "ChargeUp Boost 2" 20k mAh power bank that is about 2 years old. I notice that it's charging fine but when I connect my phone, the phone says "Check your charger connection" which means the USB-A ports, or the connector, is bad. This is a pricey power bank so should I try and repair it? if so how do I take it apart at least?

Battery: How do I fix an electric bicycle battery that is out of cell balance?

Sat, 14 Aug 2021 23:14:07 -0700

Problem/error occurring

The lithium-ion battery (NKY451B02B Panasonic 25.2V, 13.2Ah) in my electric bicycle is out of cell balance and inoperable.

What I tried by myself

I disassembled it and found that there are 42 cells (18650) (6 in parallel and 7 in series configuration). The specification of one cell is estimated to be 3.6V, 2200mAh. When I measured the voltage for each block of six parallel cells, six were 3.81V and one block was 0.3V. One of the cells had rust on it, so it was removed. A cell (18650) that was used in a mobile battery was mounted in its place. We then charged the cells to an equivalent voltage, but the cell balance was not resolved.

I assumed that the control board was memorizing the cell balance status. I would like to know how to resolve this condition.

⟐ Commented August 14, 2021 at 23:14 MST

Battery: Help making a Cozmo Robot charger

Thu, 08 Apr 2021 17:05:46 -0700

I'm trying to figure out how to make a Cozmo Robot charger.

It has a 3.7V lithium battery at 600mah. I have a 5V 2A cord. I do not have a 3D printer so I would also need suggestions for housing. Could I get some direction on what components I'll need please? I don't even know where to start.

Battery: Battery component of ThermoScientific Matrix Pippetors

Mon, 13 Apr 2020 13:46:04 -0700

Hi,

I am trying to repair some electric pipettors (see pictures, ThermoScientific Matrix) in my lab and figured that I just need to replace the batteries.

Can you please help by identifying the electronic component attached to battery in the picture and where I can buy it (reference _ shipping to France if possible)?

Thanks in advance,

Abdel

⟐ Commented April 13, 2020 at 13:46 MST

Mophie PowerStation 5X: Power bank only powers device when plugged in to wall

Fri, 10 Jan 2020 19:37:10 -0700

I bought a new power bank for a heated vest. The vest won't turn on unless the power bank is plugged into the wall socket, which kinda defeats the purpose. Both items are new, the power bank says its fully charged, is there anyway to determine which item is causing the problem without going out any buying another power bank?

Battery: My powerbank says it is charging even though it is not.What do I do

Tue, 13 Aug 2019 09:01:11 -0700

My powerbank says it is charging itself but I am not charging the powerbank.Anyone can help me?