12v battery charger

[ldj]

Where to buy old fashion dumb battery charger

 

[glennster]

probably garage sale. seems all the new ones are microprocessor controlled.

 

[Geo-TH,In]

Amazon:

Schumacher Electric Manual Battery Charger & Engine Starter - 12V, 150A with 25A Boost - Heavy Duty Jump Starter & Charger for Standard, AGM, Gel & Deep-Cycle Batteries - 6-Foot Output Cables SC143​

$108.96List: $185.99

 

[Mike(NEOhio)]

I have an older 5-12 charger that's for deep cycle batteries. What I like is it has a timer so I don't have to run back out to check or shut it down.

 

[JWA]

Amazon:

Schumacher Electric Manual Battery Charger & Engine Starter - 12V, 150A with 25A Boost - Heavy Duty Jump Starter & Charger for Standard, AGM, Gel & Deep-Cycle Batteries - 6-Foot Output Cables SC143​

$108.96List: $185.99

That's the one that I have had for about 5 years, it has been trouble free

 

[Brownie450]

Even these manual non microprocessor chargers with the
high amp ratings have a crutch in the fine print.
"Charging on boost---5 seconds on---225 seconds off
for cooling" A lot of these units have the button rectifiers
which are held on a heat sink by clips, so heat disipation
is iffy.
Jim

 

[JMOR]

Even these manual non microprocessor chargers with the
high amp ratings have a crutch in the fine print.
"Charging on boost---5 seconds on---225 seconds off
for cooling" A lot of these units have the button rectifiers
which are held on a heat sink by clips, so heat disipation
is iffy.
Jim

No button diode in this Marquett!

 

[wore out]

No button diode in this Marquett!
View attachment 114775

I have it's twin. They are built like a brick xxxxhouse!

 

[JMOR]

I have it's twin. They are built like a brick xxxxhouse!

Yes they are….. definitely not today’s plastic, built to be replaced next year stuff. Mine, Dad’s, before me, still works fine.

 

[Andy Wickiser]

Where to buy old fashion dumb battery charger

Try Ebay. Search for vintage battery charger or other phrase specific to what you're looking for.

 

[Geo-TH,In]

I salvaged this old manual charger. The only thing what was good inside was the transformer.
I replaced the 2 diodes, all the wiring, the meter, replaced the circuit breaker with a 20 amp fuse. Added a dimmer switch
to adjust the input voltage. Added a boost switch so I can use one or both diodes. This is a one of a kind charger.
I bought the charger about 55 years ago. It can over charge and damage a battery so when I use it I add a timer so it only charges for a few hours.

 

[Brownie450]

Electromite was a good charger. I have one.
All copper windings.
Jim

 

[rrlund]

probably garage sale. seems all the new ones are microprocessor controlled.

That's just what I was going to say. I bought a nice heavy old one with a 50 amp booster at a yard sale for $20.

 

[Geo-TH,In]

Yes they are….. definitely not today’s plastic, built to be replaced next year stuff. Mine, Dad’s, before me, still works fine.

Yes they are….. definitely not today’s plastic, built to be replaced next year stuff. Mine, Dad’s, before me, still works fine.

I scrapped out a huge power supply that has the mother of all diodes. I've been waiting for the past 30 years to find a huge battery charger to use them. They are so old I can't find any information on them. They are mounted on huge aluminum heat sinks. I think I could make a DC welder with these diodes.

 

[Keith True]

This is my old Marquette charger.The heavy leads retract through a hole in the back.Works great,but the problem is that it only works on 6-8 volts.A 41 Caddy with a battery that just clicked the starter on the flathead V8 spun right over with that charger hooked to it.

 

[farmersamm]

To get a charger equivalent to my old Craftsman DieHard charger, I'd have to buy this one.

https://www.batterymart.com/p-40-20-2-230_amp_12-24_volt_wheeled_battery_charger.html?msclkid=721a1d91461b14d3db0475a19bcb7326&utm_source=bing&utm_medium=cpc&utm_campaign=CPCS%20-%20Shopping%20-%20PLA%20-%20Catch%20All&utm_term=4577198189230149&utm_content=All%20Products

I believe I paid around 65 bucks for mine(on sale) some 30yrs ago. Times change I guess

 

[Ray,IN]

IMO nothing can beat the old copper-windings, I have 2, one is a roll-around 10/40A, the other is a hand-carry 15A_but I don't carry it far.

 

[will-max dairy]

I scrapped out a huge power supply that has the mother of all diodes. I've been waiting for the past 30 years to find a huge battery charger to use them. They are so old I can't find any information on them. They are mounted on huge aluminum heat sinks. I think I could make a DC welder with these diodes.

Those diodes put the semi in semiconductor... holy Moses...

 

[will-max dairy]

Even these manual non microprocessor chargers with the
high amp ratings have a crutch in the fine print.
"Charging on boost---5 seconds on---225 seconds off
for cooling" A lot of these units have the button rectifiers
which are held on a heat sink by clips, so heat disipation
is iffy.
Jim

"Charging on boost---5 seconds on---225 seconds off for cooling"

Sure, that might protect the button diodes; but most "boost" currents would be bad for a battery as well.

I would never throw a charger on "boost" and leave it connected to a battery for "charging"...whether the diodes in the charger can handle it or not.