Category:Products: Difference between revisions
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*Measuring it surprised me. It is not the usually 14500 format which is common (similar to AA size) but a properitary 14480 size. The battery compartment is designed so that no 14500 battery will fit. | *Measuring it surprised me. It is not the usually 14500 format which is common (similar to AA size) but a properitary 14480 size. The battery compartment is designed so that no 14500 battery will fit. | ||
==== | ====„Li-Ion 20“ battery chemistry==== | ||
*on chinese shopping 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 stoped 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. | *on chinese shopping 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 stoped 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. | ||