Editing User:Wolfman/philipsS3000 (section)

====„Li-Ion 20“ battery chemistry====
On chinese shopping websites there were 3rd party replacement parts in philips properitary 14480 size with solder tabs in 3.7V Li-Ion chemistry Reading the 1 star reviews (can‘t believe those websites don‘t delete 1 star reviews as usual) people wrote ‚don‘t buy, burns electronic board‘ As my battery was dead (0.6V) i very carefully put 100mA at 2.4V into it, then 3.0V.  Quickly stabelizing at 3.2V i realized it is LiFePo4 battery chemistry misleading named Li-Ion 20. Continuing charging Voltage climbed to 3.65V where i stopped it. Shaver worked again but as the battery was dead the capacity was only 170mAh instead of about 650mAh. When the voltage was at an acceptable level, the original charger worked again and charged to 3.65V.