I'm assuming the batteries that were in the driver were NiCd while the ones you put in are NiMH; is there an issue using the same charger with the different chemistry (in particular because it's probably not a smart charger)? Electro-wizardry is not my specialty.

Lol, like you called it Electro-wizardry is not really my speciality either :) I believe the old batteries were NiCad and replacements were NiMH and the charger is most definitely not a smart charger. All I can tell you is that there doesn't seem to be any charging issue. As normal the charger and the batteries do become a little warm during the charging process, but as far as I can tell not warmer than they did before their replacement ;)

Thanks; I found this video looking for reviews of the more-or-less throwaway driver that I'd like to have for odd jobs that don't warrant a drill or impact driver (or that would be unwieldy in that application). I would be very likely to try this mod should it be the batteries that go kaput (instead of, say, the motor/brushes/switches). Thanks for the video.

i agree.. freaking perfect

Thank you so much

Lol, if life was that simple :D love the username ;)

lol

Thank you ;)

Thank you ;) I didn't need to replace the charger but when I charged the screwdriver for the first time I made sure it was not getting hot ;)

Thank you, the charger that came with my screwdriver is 6V, so if you do have one I would give that a go ;)

Thank you ;) the song is called Pink Lemonade by Silent Partner and you can download it here if you like kzfaq.infomusic

It's definitely more powerful than before. The main reason for me changing the batteries was, that they would no longer hold the charge (lasting about 2 minutes), hence the screwdriver was pretty much useless. It feels like new now ;)

There's another screw under the sticker. You'll need two sizes of star bits since the one under the sticker and the chuck assembly use smaller.

I think it was just a piece of scrap metal, but you could also use a piece of wire, shouldn't make any difference ;)

@@nerdyKat what kind of metal?

I don't see a problem with that ;)

Thank you and yes it certainly can ;)

Your question leads me to think that your not sure what mah means that's ok I'll try my best to answer for you. The incoming and outgoing power won't change just because you're adding more mah. Take for example AA batteries, there are all kinds of different brands and many mah ratings, however, they are all 1.5 volts. There is no chance of overcharging if you're adding a higher mah battery. A higher mah number only means that the battery can store more energy, means it has a higher capacity. For instance, a 3000 mAh battery could power a device drawing 100 mA (milliamp) for 30 hours. You could even put a 1500 mah battery into a device and it would run a 100 mah device for 15 hours. I Am not sure how undercharging or overcharging works so I can't answer that part of your question. The simplest point is that the output voltage doesn't change with the raising or lowering the capacity(mah) of a battery.

@@KoolBreeze420 well I am a financial not eletrician but I know amperes and microah as units of measurement only .thanks for your help!

@@jfrncjr Sorry if you think I said something demeaning that wasn't my intention.

@@KoolBreeze420 No need to be. YOU were VERY HELPFUL and explained Very well! Thanks a Lot!

@@KoolBreeze420 Hi koolbreeze! I am studying this issue to change mine. And found another problem that you may kindly confirm . An upgrade of Mah will make the original charger take longer to load the battery. It seems that each 1000 mah with one 1000 mah output charger, takes one hour to load the battery. So If I double the battery , It Will take TWICE the time to load :(

You're welcome ;)

Wouldn't there be a difference in the volt. 4 AA will have a volt of 1 .2 X 4 = 4.8 . 2 18650 will be 7.4V as each is 3.7V.

I don't think that would be a problem, however most of the rechargeable batteries I've seen were 1.2 V which would give you the 4.8 V ;)

Lol, thank you very much for your lovely offer, however my heart already belongs to another ;)

@@nerdyKat Lucky (if) Techy

Her technique keeps the heat exposure to about a second each time. No prob.

al mio no se le apaga la luz roja aunque este veinte años cargando

You didn't do it correctly.