Flashlight Upgrade

In this instructable you will learn how to upgrade a standart Chinese flashlight to Li-ion 18650 and micro usb charger.

Li-ion battery: I took from old laptop battery

Li-ion charger: 5 pcs

Supplies

1. Glue gun
2. Scalpel
3. Cutters
4. Soldering iron

Step 1: Dissasembly

Unscrew the ring then find 1 screw and remove them by the Screwdriver.

What we have inside:

• Plug
• Step-down scheme
• Battery
• Switch
• LED

Remove by the cutters: battery, plug and step down scheme

Step 2: Сompletion of the Body

1. Take plug, cut wires and glu it to basic place
2. Make hole for micro usb port by scalpel

Step 3: Wiring

• Solder battery to charger keeping polaryty (battery + to B+ on charging board, battery - to B-).
• Solider Out + to switch, Out - to led wire

Step 4: Gluing

• Glue charge bord, battery.
• Assembly flashlight
• Glue gap

Step 5: Test

Camera does not transmit the brightness of the flashlight, it is brighter than it looks.

Thank you for listening