The Battery Doctor

Promovec 50343 battery smelling "funky" and don't wanna charge - What is wrong?

Bosch PowerTube 500 Wh - Complete Teardown

The best 18650 cells ever (Panasonic, Samsung, Sony, Sanyo and LG)

We get 6 Bosch Powerpack ebike batteries for free! Whats wrong with them?

Bosch ebike battery Repair Part 1 - Rear carrier models and differences

You must see this video BEFORE you buy a Smart BMS ebike battery!

Does Internal Resistance have anything to do with Battery Capacity and how to test it?

A look inside Ericssons MASSIVE 48V50Ah Battery (made by Incell/Polarium)

Inside @ Rockrider (Trend Power) another battery we cannot fix

How to replace the DC charging port on ebike batteries (Common problem).

First look at Sony US18650VC7 - NEW 3500mah 8A lithium-ion cell

How to buy without VAT on aliexpress (if you have a EU company)

I test EVERY 18650 Lifepo4 on #aliexpress

How to fix Phylion ebike battery not charging - COMMON PROBLEM - EASY FIX

First look at Samsung INR21700-48G Battery cell

SUPER 73 ZG battery diagnotic - 100% capacity possible

Ghostcells: This is the END for LG Chem (Problem: Charger turning on and off)

How we deal with COMPLETE IDIOTS - Part 1

I test every 21700 cell on

Inside @ Roidmi x20 Vacuum Battery

Super Soco TC 17S (2021) Battery Diagnostic Attempt

Greenway YJ145 Playing dead (No Charge/No Power) How to fix it

Greenway fixed the fuse problem on YJ145 but made an even worse mistake in 2024...