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  1. W

    Is it safe to use a spare battery as a range extender battery (via charging port mod)?

    I have a battery that lost half its charge, it holds the same power but simply stops working at the 50% charge. I suspect half of the cells are destroyed somehow due to going up a really steep hill after a long ride, I still don't really know why. Nonetheless, I was sent a new battery from my...
  2. W

    bad battery protection board or bad cells?

    Firstly I should mention that I don't really know anything technical about battery protection boards, all I know is that they help to maintain the battery in working condition. I opened up a scooter battery, a 33V, 6.5Ah Li-Po battery for the e-Twow S2 Booster, that I deemed dead because it was...
  3. W

    E-Twow Booster S+ reads an "E1" error

    I bought a used E-twow Booster S+ off E-Bay yesterday and am currently waiting for delivery. I won the auction at $240 including shipping. It's described as having an issue affecting the motor control and also the battery charges only to 90% so I'm not getting too excited yet. I am refurbishing...
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