Phone won't charge until after reboot

Help Fairphone 1
14

Did you know that you can reset the battery’s software? This is taken from the FP1(U) community battery guide:

[quote=“Stefan,topic:5372,post:7”]At FP they told me that the battery has its own software inside, which sometimes needs to be reset.
Battery-Software Reset/Recalibration:

  1. Use the battery up until it is below 0% (until the phone dies).
  2. Take the battery out of the phone.
  3. Plug your charger into the phone (still without battery). [Wait a few minutes]
  4. Insert your battery. (This will give the battery a kick)
  5. Charge your phone in one go until 100%. Do not boot the phone during charging.
  6. If this doesn’t work for the first time, try it a second time, beginning from step 1[/quote]