Braun BT5090 Battery Replacement

crwdns2936071:01crwdne2936071:0 — Remove the trim head

Fold down the trim head

crwdns2936071:02crwdne2936071:0 — Opening of the housing

Unscrew the 2 screws at the front under the blade.

crwdns2936071:03crwdne2936071:0 — Opening of the housing

Use the iFixit picks or a similar tool to run along the edge between the top and bottom pieces to loosen the retaining clips.

crwdns2936071:04crwdne2936071:0 — Opening of the waterproof inside assembly

With gentle pressure from the opposite side, you can carefully remove the inner module and motor from the housing.

crwdns2936071:05crwdne2936071:0 — Replacing the batteries

Carefully lever the PCB up and out. The PCB is held by 2 small hooks approximately in the middle. Spread the housing slightly while you carefully lift out the PCB, e.g. using a small screwdriver on the batteries.

crwdns2936071:06crwdne2936071:0 — Solder new batteries in place

If your replacement batteries does not come with its own flags, you still have to unsolder the original flags from the batteries. That doesn't work so well. It is better to use new ones.

crwdns2936071:07crwdne2936071:0 — New batteries installed

Lay the cables to the motor past the LEDs