Looking for a "dumb" battery charger

LegitDuner

LegitDuner

Well-known member
May 5, 2021
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I've got three battery chargers here and they all won't charge a new battery that went too low. My old Sears DieHard just took a chit. That was the only one that would bring the batteries up to a sufficient amount so I could switch over to the smart charger's that I have.

Do they make them anymore? Any recommendations? I don't understand why they would make battery chargers that won't charge if they don't sense at least two amps.. I mean I get the safety aspect of it but, for effs sakes.

 
RC battery chargers have tricks.  I've resurrected lipos by setting to nicd at .1amp.

Also bumped a dead 20v DeWalt by connecting to a live 20v with 2 wires.  

 
Indian Joe said:
Look on eBay just bought 1970 10 amp Sears charger for $22

On /off. works awesome 
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Yeah, I just looked and found a new old stock die hard battery charger.. I think I'm going to buy it.

I'm really bummed on my other one though, it had all the benefits of modern chargers (computer controlled) but it also didn't take a minimum voltage.. I think I bought it around 1999-2000.

Thanks for all the replies.

 
Jump start the charger...use a portable boost / jump starter while the charger is connected and On....the charger needs to see voltage to trick the circuitry to begin charging. 

Or buy a charger that has a Force option built in. 

 
Meter Tech said:
Jump start the charger...use a portable boost / jump starter while the charger is connected and On....the charger needs to see voltage to trick the circuitry to begin charging. 

Or buy a charger that has a Force option built in. 
Click to expand...


Sausage450r said:
Hook it up to another battery that is good then connect a charger to it (connect batteries with jumper, then put charger on). Fools these chargers that have a minimum voltage requirement
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I've had to do this a couple times.  I just used jumper cables between the dead one and the good one.  Once it starts, you can remove the cables and good battery.

 
As said above: any "smart" charger is dumb if you have another battery.  Hell, if you're trying to revive a small battery and have a super large battery, you don't even need to plug into the charger, they'll level off at 11-12v and you can use whatever other method to complete the charge.

 
I hate smart chargers...................I went thru what you are a couple of years ago, ebay was my friend and picked up an old one cheap, works perfect.

 
So I had bought that new old stock charger (open box) and then I ran across the one that broke on me... so now I have two... 🤪🤪 

 If anybody needs to borrow a charger you know where to find one. Haha..

Screenshot_20230622_110901_eBay.jpg

Screenshot_20230622_110938_eBay.jpg

 
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