Cordless tools 120 AC adapters?

[GarageGuy89]

I seen one for the rigid 18v batteries when browsing online. Basically has a battery pack on one end, and that battery pack is connected to a cord, you can plug in to the wall to turn your tool into a corded tool...

Want one for my 20v dewalt tools! I see they make it for the flex volt tools only.

Anyone try these adapaters?

 

[kctyphoon]

Makita has one sold through greenlee, and Dewalt used to make one for an old platform. For whatever reason it's not something popular with tool companies.

 

[sherlocktk]

I tried very hard to find a 18v power supply to make my old nicad milwaukee corldess stuff work.
Bought a 600w 18v switchd mode power supply ($40) from ebay or aliexpress.com worked until I put it under load, let out the magic smoke.

Then bought a 1000w 18v switched mode $100 when under load device cuts off.

Bought 3 of the $40 supplies wired in series for 1800 watts or something, Cut off when there was any torque applied. They did not like to be run in parallel for more current. Basically the same as the $40 one.

I threw all the old tools away and reclaimed space in the garage. I am happy again. It was hard to let my old friends go though. I dont think the electric power supplies have enough "stall torque" current without a very over engineered power supply.

 

[Michael_in_DE]

I've had limited success using a laptop charger. But for the price of even a mediocre ac drill, it wasn't work messing around with.

 

[Lelandwelds]

I suspect if you get away from switching power supplies and try old school hunks of iron and add a diode bridge, you will find more success. I mean, if you can weld with one . . . In fact a welder specs is pretty close. ( 19 volt or 40 volt)

I cant find it when I want it of course but there's a guy in the internet wilds who bought an ebay spotwelder to convert old legacy nicads to lithium. The cool part (other than stock appearance) was he reworked power supplies to ideal lithium charge rates.

His site was one of those " blog something" or "wordpress other" dealing with mostly guitar building.

 

[kctyphoon]

It's the amperage draw that's the issue.

 

[guy48065]

I have the Dewalt 28V Li-ion powered track saw that Dewalt abandoned way too soon when their source for the amazing A123 batteries dried up.
I searched far & wide for an AC adapter but there are none. When you learn that pack can put out 60A you understand that nothing else short of a vehicle cranking battery can put out that much instantaneous current. No adapter and length of wires can duplicate that performance.

 

[6PTsocket]

I have the Dewalt 28V Li-ion powered track saw that Dewalt abandoned way too soon when their source for the amazing A123 batteries dried up.
I searched far & wide for an AC adapter but there are none. When you learn that pack can put out 60A you understand that nothing else short of a vehicle cranking battery can put out that much instantaneous current. No adapter and length of wires can duplicate that performance.

60 amps at 28 volts would require 14 amps from the 120 volt source. While there may not be anything off the shelf at a reasonable price, it is theoretically doable. Most battery packs in modern tools use several cells grouped in parallel to supply hugh current. Heck, aTenergy 2Ah Ni Cd sub C can supply 20 amps. Put 3 in parallel and you have 60 amps.

Sent from my SM-G900V using Tapatalk