Battery replacement for Panasonic ER1611 hair clippers

Video showing how to replace the two rechargable batteries, including disassembly and assembly of Panasonic professional hair clippers ER1611, ER1610 and ER160. The original batteries recomended price is about 25 EUR, however you can find them on amazon for arround 10 to 17 EUR - check these links: These batteries are different from the standard AA batteries, both in form factor and voltage. You can not use normal rechargable AA, because they won&supply enough current and their voltage is normally 1.2 V. I measured the voltage of the original Panasonic batteries and they are at 1.7 V.