Ive got an old vintage british made electric screw driver with beefy steel gears. I salvaged it from the scrap bin where i used to volunteer testing/repairing electronics before the pandemic started. The plastic case is very brittle so i glued it but the motor and gearbox is all solid steel. I replaced the 2 old dead NiCd batteries with 2 18650s and installed a 4056 charge controller board. It has a switch to connect the batteries in series or parallel. Obviously in series the motor runs faster but with less torque. It works very well.
Bought a cheap Ryobi branded one that used Nimh cells, and after the cells died replaced them with a 18650 cell and a charge board. Cannot use the undervoltage side as it trips out, so direct to battery, but does not worry me as single cell and I have plenty more to use there. Took another and did the same, just instead of the motor and gearbox used a laser diode, now a USB charged cat toy, which can last months of use. The cells had rotted and destroyed the motor as well.
Lack of discharge protection is a pity, the motor probably spins fast enough to still be usable at ~3V so I could imagine people discharging the battery to 2V or even lower
Mine was a brand-name one, but it was a while back so the battery was NiCd and had a problem and stopped working. I took it apart and it looked the same as yours, but the ball-bearings fell out and a couple of them disappeared into another dimension. 😕 (I also have a "1 million candle" spotlight from the same brand-name that also died because of the battery, but that one is lead-acid. 🤦)
Ive got an old vintage british made electric screw driver with beefy steel gears. I salvaged it from the scrap bin where i used to volunteer testing/repairing electronics before the pandemic started. The plastic case is very brittle so i glued it but the motor and gearbox is all solid steel. I replaced the 2 old dead NiCd batteries with 2 18650s and installed a 4056 charge controller board. It has a switch to connect the batteries in series or parallel. Obviously in series the motor runs faster but with less torque. It works very well.
I believe the P in 18650P denotes that the battery has built-in protection.
Bought a cheap Ryobi branded one that used Nimh cells, and after the cells died replaced them with a 18650 cell and a charge board. Cannot use the undervoltage side as it trips out, so direct to battery, but does not worry me as single cell and I have plenty more to use there.
Took another and did the same, just instead of the motor and gearbox used a laser diode, now a USB charged cat toy, which can last months of use. The cells had rotted and destroyed the motor as well.
You can get namebrand screwdrivers of this form factor, like Bosch for instance.
Considered the Bosch Go? Gen 2 even has a clutch and an electric brake. AvE has a video on the first one.
Lack of discharge protection is a pity, the motor probably spins fast enough to still be usable at ~3V so I could imagine people discharging the battery to 2V or even lower
is there nut attachments that I can buy with this? If yes, please give me the link
Mark!? MARK!? You're not dead!?
@mark Use a Dewalt DCF601B or similar, love it, works great and can even be used in more heavy duty work.
I think it is great you spent so much time analyzing it, why not add one extra min to ACTUALLY demonstrate and see how well it performs?
Charger broke in my one where could I get charger for same tks
Mine was a brand-name one, but it was a while back so the battery was NiCd and had a problem and stopped working. I took it apart and it looked the same as yours, but the ball-bearings fell out and a couple of them disappeared into another dimension. 😕 (I also have a "1 million candle" spotlight from the same brand-name that also died because of the battery, but that one is lead-acid. 🤦)
Anyone can confirm the charging stops after 5 hours or so ?
It's our world ;(
check out 'Xiaomi Mijia Electric Screwdriver Review' by 'darieee'
Still working? 🥸