Question about Ryobi Multi-Volt Battery Charger

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Charger for 12 volts 7 amp battery smf

I need to design a low cost charger for 12 volts 7 amp battery.please help

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  • Anonymous Mar 18, 2014

    how to hook up a on board charger with 2 banks to a 12 volt and 24 volt system

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  • 103 Answers

You need to go to a **** smith store and bye a kit to do this cheers peter

Posted on Apr 12, 2009

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1 Answer

I have a Black & Decker 12 volt cordless power/hammer drill. I think it needs a new battery & possibly changer. Can I purchase a new battery & charger or is the drill too old?


try this parts supplier
Black and Decker Cordless Drill Parts

see if your model has a parts list for battery and charger

if discontinued
look for tha same used drill in better condition
or toss in the bin

Oct 20, 2016 | Drills & Drill/Drivers

2 Answers

Can i charge a 18v dewalt battery useing a 12 volt and a 6v chargers wire


I would say that this is a bad idea. A tool charger is designed specifically for the battery, and kluging it like that is a good way to fry something.

Jun 06, 2015 | Dewalt Drills & Drill/Drivers

1 Answer

How do i convert a makita charger model DC18RC at 110 volt to 240 volts?


The DC18RC are most likely to charged the BL1830 battery, which is the most popular of 18V Makita power tools. It is a Li-ion battery.

And the DC18RC battery charger has two volt 110 Volt and 240 Volt.

The 240 Volt DC18RC charger can replace model DC18RA & DC18SD because of its improved performance and full compatibility with Makita's NEW 'Star' labelled batteries that communicate between the tool, battery & charger. And, it is a fast charger.

It can charge a Makita BL1830 Battery in approx 22 minutes.

But, I do not recommend to convert a makita charger model DC18RC at 110 volt to 240 volts.

The reason is as below:

1. This will void product warranty ! If you follow this mod, you do it on your own risk !

2. There are several comments that described
same model # but with different design and components.
Please beware that this mod might not work on your charger
or worst, will damage it.
Only perform this mod if you know your way around with electronics !

Sep 20, 2013 | Makita Drills & Drill/Drivers

2 Answers

I have a black & decker pivot plus that will not charge. How do I know if I need a battery or if I need a charger?


Batteries are only good for about a year, if they are older than that, take them back to the store and see if they are guaranteed at all, (all Ryobi tools and batteries have a date code on them, and they are all guaranteed for 2 years, a little plug for Ryobi,) that is all I buy now days, they work great. So, to check your charger, you will need a volt meter set on 12 or 20 v dc, and see if the charger is putting out, if not, then, the cost of a new ryobi might be the same as the fix for the black and decker. That is if you use the thing, we use our cordless tools every day and charge them every night, hope this helps.

Jun 28, 2011 | Black & Decker Pivot Plus Cordless...

1 Answer

There is a yellow light flashing and battery not charging. I bought a second hand battery charger and it doesn't seem to be working either as there are no lights lighting up. Is there any way of testing...


the charger has three out points the one on the left at the side combined with the point at the back should be putting out 14 volts if not the charger is dead as for the battery the pack needs to be pulled apart and a test done on them that needs a tech with the proper equipment


hope this helps please remember to rate me

Nov 28, 2010 | Panasonic EY6409NQKW 12 - Volt Drill/...

1 Answer

How do I check and replace fuse on Ryobi CTH 1202 Charger?


AT THE BOTTOM OF THE UNIT YOU WILL FIND LIKE 8 TO 12 SCREWS,UNSCREW THEM.aFTER THAT YOU WILL SEE THE FUSE that would be a 2.5 amp fuse.



If you need more help come back.Post / thumbs / testimonial are welcome!

Nov 27, 2010 | Ryobi Multi-Volt Battery Charger

1 Answer

I have a mikita 12 volt and when I charge it it wont hold charge.


do you have a volt meter toi check the charger voltage? if so then read the voltage out of the charger, it should be 1 or 2 volts higher than the listing 12v would be 13 or 14 volts. if it's working you probally do have a bad battery. if the charger is out then you have a bad charger.

Aug 03, 2009 | Makita 12 Volt Cordless Drill/Driver Kit

2 Answers

Yellow & Green lights stay on,battery will not charge


I hooked a 12 volt car battery charger to the battery for about two min. Then I put it in it's own charger,the yellow & green lights came on for about 5 sec. then the red light came on . About 30 min. later the green light came on and the battery is fine.

Jun 22, 2009 | Ryobi Multi-Volt Battery Charger

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