i have the PG-6020 like the video. I used a 1.2v battery like he did and it works great but the text on the case of the shaver says 3.6-4v so I don't know if this is a typo? It came with a 1.2v battery.

And the damn thing won't run off the power adapter, charge only.

No. do not use plumbing solder on electronics use this www.amazon.com/Alpha-AM62964-Cookson-Lead-Free-Solder/dp/B000G35MX6/ref=sr_1_5?ie=UTF8&qid=1497547972&sr=8-5&keywords=solder+electrical

The charger isn't nearly powerful enough to run the motor, so to make it run without battery would require a new power supply + a lot of surgery to the machine - too much to make sense...

I'm 5 years too late but most solder they sell nowadays has a flux core anyway.

+calanan I've read that you should NOT run the device while charging for NiCD batteries. I never run it while charging and tend to try not to leave it on the charger much longer than it needs to fully charge. Pretty sure that last part is overkill, but that's how I do it.

+HelpingDIY Thanks...do you let it charge for the 12-15 hours they recommend in the manual or do you go a bit longer with the 1000 mAh replacement?

nicads have a poor memory feature - you are meant to discharge them totally every time that you charge them. its a frustrating choice were they just trying to get rid of stock?

I you don't have the tools to do it that would be the better choice.

lol

No you need a different brand. Don't promote brands that don't want you to fix your own personal items.

LOL

The color of the battery doesn't matter. The mAh just tells you how much total storage capacity the battery has. Higher numbers are better here, but lower numbers will work fine too, they just won't hold a charge as long. Good luck!

This is exactly what I am going to do, wiring them in parallel to double capacity. Thanks for noticing this.

George Longoria did you end up adding the 2nd battery? if so did it work fine?

Otto Donis I ended up replacing it with a single NiMH battery rated at 2500mah that I had laying around from an RC toy. Trimmer works about as well as before but in retrospect, if I had to do it over again, I'd change a few things. First, I again used an old spare I had laying around. So there's no telling if its performance had previously been degraded. Hence, I would probably install a known fresh battery. Second, I liked the advertised 2500mah of the NiMH over the combined 2x1000mah of a new NiCD battery. However I read some discussion that the NiCD batteries "discharge" faster which I took to mean the trimmer motor runs stronger (akin to having higher water pressure). I did notice with my NiMH battery, the trimmer ran fine, but it can get bogged down with wet beard hair. I don't recall that happening with the NiCD battery until it was late in its service life. But again, I don't know if it's just me or the unknown status of the replacement battery or what. I can say though that before my NiCD battery died and stopped taking any charge, my previous MO was to start trimming my beard down, unit slows down, put unit back on charge, shower and then after it got a brief recharge, finish fine trimming. Now, with the replaced battery, I can confidently wait until after my shower (and softened up hair) knowing the trimmer holds enough charge to do everything in one shot. There's more wet hair then so maybe that perceived weakness isn't really there. To continue though, I just tap the blades in the sink to clear out. Oh, a third thing was if ordering new batteries for this, save yourself some hassle and order pre-tabbed batteries. My replacement wasn't tabbed so I had to make sure I didn't cook the battery while soldering directly to them. I have experience building RC car battery packs so wasn't too concerned about this but the average DIYer might not have the know-how and excessive heat will damage the life of the battery. Having tabs already on the battery reduces this risk.

Use solder. Do not hold the heat on the battery too long. Let it cool before attaching the other wire. It's best to wet the surface of the battery ends with solder prior to attaching the wires.

A thin putty knife worked for me

+sonastainbrook Really glad to hear it! One less item in the landfill!

I was going to also. LOL Now for the head, the head isn't working well- might has something wrong. I have this one as well as the model-PG6025- that has much finer teeth and won't cut nearly as well.

dont use a sotter kit, i only used tape and cisors and thats all

answer after 6 years...: charger only charging the battery and only when the switch is off. When the switch is on the charger, is disconnected from the battery (and the motor). Its for simplicity (cost) reasons...

Reason: NI-CD batteries have memory. If you let them discharge too much, they won't charge to full capacity anymore. As of 2017, the best replacement are Ni-Mh batteries wich have better chemistry. The trimmer up-time would vary depending on the battery. You can fit a beefy 2200mah battery in there for 45+ min uptime.

Yes but the motor wont take such power for that long. It will wear out. Better have this thing cooling every 20+ mins.

Mine was too.

This was also the case for my razor. Only realised once I had the batteries shipped from Italy and had opened the unit. Video should give an indication of potential difference in battery sizes.