Discharged batteries JA-803450P

[binutzu]

Hello,

i have two JA-803450P batteries, one from EduArdu and one from Lime2 home server.
They stayed long time unused.
Lately i needed EduArdu as remote control and tried to charge one of them.
However, they do not seem to charge in 1-2h at all.
The measured voltage is v. v. low: 0.1V

The spec https://www.olimex.com/Products/Power-Supply/Lipo-battery/BATTERY-LIPO1400mAh/resources/JA803450-Spec-Data-Sheet--J-A.pdf
mentions in §8.7 and §8.8 "charging from 0" respectively after long time.
Is there a way to re-charge them using EduArdu or Lime2 or is special gear required?

Otherwise, they are due for recycling ...

Thanks in advance.

[LubOlimex]

They need more time. Leave them connected for 24h and check again. If the voltage stays 0.1V after 24h of charging they are probably very dead.