Norelco 1280x Philips Shaver Battery replacement 3.7V 800mAh

Replacing battery for Norelco 1280x PHILIPS HQ8290 HQ8800 HQ8894 shaver.
The battery is the same size as a AA battery 50mm x 14mm

[@theanimaster]

Thank you sir, for sacrificing your thumb to show us how this is done. After ordering the significantly-more expensive “prestige” 9886 model “space grade steel” model - I immediately looked up if there was a replacement battery - and how to open the older 1280x I have had for 10 years at the time of this posting!! The newer models are trash. The feel is so plasticky and well - I’ve yet to try it out, but after reading reviews post-purchase… I’m not entirely convinced it’ll even shave as well - because of the new, stupid-shaped head. The 1280x just feels more premium, and the head had tighter clearance for better shaving.

[@kenkanfix]

👍🙂

[@patmurray103]

Thank you Ken, your video was very helpful disassembling the shaver. My shaver would not charge anymore because I left it unplugged for a few days. However, I found a fix by recharging the battery with a 9 volt battery. I disassembled per your video but instead of replacing the battery I clipped some leads from a 9 volt battery to each end of the Norelco battery observing the correct polarity and held them in place for about 5 minutes. I then checked the Norelco battery and it showed 3.4 volts whereas before it was zero. Reassembled and it started charging. After 20 minutes charge it worked as normal. I don’t know how long it will last so if it happens again I will go for a new battery.

[@kenkanfix]

hi, I am glad it helped you ☺️

[@scottzup]

@patmurray103 Inventive idea! Just checking.. is it still taking a charge 4 months in?

[@hamishdavidson3368]

Is that a standard 18650 cell

[@kenkanfix]

hi, no, it's the same size as a AA

[@weirdmeisterinc]

its a 14500 sony