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SunBell: Change battery

Required tools

  • Screwdriver: Torx T5

  • Screwdriver: Torx T6

  • Battery LiPeFO 3.2v

Step 1

Unscrew lamp casing

Using a Torx T6 screwdriver, carefully remove the 3 screws at the bottom of the case.

Screws are small and light, so make sure to place them in a safe spot to avoid losing them.

Step 2

Open the plastic casing

Carefully separate the two parts of the plastic casing. Do not pull too fast, as a battery cable is still keeping them together.

Step 3

Pull battery out from bottom casing

Gently pull out the battery.

If the battery is locked very tight, pull firmly but with care not to damage the cables.

Avoid using sharp tools such as pliers, which may damage or break the cables to the battery. This is a safety hazard!

DO NOT use sharp edge tools to pull battery out.

Step 4

Disconnect battery from electronics board

Depending on the version of your lamp, the battery will be attached to the PCB in one of two ways.

1. If your lamp's battery has a connector:
The connector consists of a socket soldered to the board and a plug attached to the battery cables. Using your fingers, gently pull the plug out of the socket. (Pulling on the entire connector might lead to breaking the solder.)

You might find silicon glue around the connector; remove it by simply pulling the connector away.

2. If your lamp's battery cables are soldered directly to the electronics board (PCB), there is no connector:

In this case, you will need to use a soldering iron to melt the connection and be able to pull the cables out. Alternatively, you may clip the cables one at a time

Step 5

The old battery is hazardous e-waste

Old batteries are hazardous e-waste. If possible, they should be handed to a specialized party

DO NOT discard old batteries as regular trash.

Step 6

Install new battery

Ensure the new battery matches the old battery's physical size, voltage and chemistry. Read the printed information on the battery wrapping.It must be marked with the following

LiFePo (lithium battery chemistry)
3.2 V (voltage)
18650 (size, 18 x 65 mm)

New battery MUST be marked as LiFePo 3.2 V

Step 7

Connect new battery in

Install the new battery by inserting the connector into the electronic circuit board (PCB).

Step 8

Reassemble the lamp

Reverse each step from steps 5 to 1 to reassemble the lamp.