LUOWEI LW-B01 / LW-B02 Battery Activation Board

A battery left discharged for too long can drop below the point where a phone will start charging it, so it looks dead even when the cell is still usable. The LUOWEI activation boards charge the battery directly to wake it up, without soldering or fitting it to a phone.

There are two versions: the LW-B01 for many Android batteries and the LW-B02 for iPhone batteries from the iPhone 5 to the iPhone 16 Pro Max. Both take USB-C power with PD support, start with one button press and detect polarity automatically, so the connectors can attach either way. The listing mentions overload protection and automatic shut-off.

When an activation board helps

• A replacement battery that's been stored too long and won't charge.

• A phone that shows no sign of charging after deep discharge.

• Testing whether a battery or the phone's charging circuit is at fault.

• Charging a battery while the phone is disassembled.

Choosing the version

Pick For iPhone or For Android to match the batteries you work on. The listing doesn't name the Android models the LW-B01 supports, so check the connectors in the photos.

Inspect every battery before activating it. A swollen, dented or hot battery should be recycled, not revived. After activation, watch whether it holds a charge in the phone before handing it back.