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Guest 2722-b Battery charger, how to hook up to 24 volt(2 12 volt)system?

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  • John Modesti
    John Modesti Apr 05, 2015

    My HD 1400 cranking bateries are 2 12 volt batteries is series to form 24 volt. How do you hook up the guest battery charger when the 12's are in series ?


6 Suggested Answers

  • 2 Answers

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Posted on Jan 02, 2017

  • 137 Answers

SOURCE: Black & Decker 24 volt battery will not hold a

I had the same problem, the batteries are burned out, I know you can replacements at Home Depot but if you can wait try the interenet.

"Google" what you want.

Posted on Mar 02, 2009

  • 1185 Answers

SOURCE: Black & Decker 24 volt battery will not hold a

Click on the link below and you will find replacments

You need to work out if the cost of two batteries is cheaper than a deal on a new drill pack

Posted on Jun 01, 2009

  • 490 Answers

SOURCE: will m 24 volt batt

Nope. It takes a different charger.
Farmerbear at

Posted on Sep 11, 2010

  • 10 Answers

SOURCE: my 24 volt black an

Batterys have a life span associated with them. Typically about 2 years depending on how often you use them and your charging habits. The newer batteries(in the past 4 years) do not have memory, but since it is a black and decker and it is low cost item they may have used an older technology. I am assuming you have checked the obvious such as the charger does work. Battery is inserted properly. An easy task to try would be to buy a new battery and make sure you discharge it before you charge. Run your drill till it stops. Then charge it to see if the charger is working. If not, then you have a charger problem. If so, there may be fuse inside that can be replaced or something simple like a solder joint broke.
Hope that helps

Posted on Jan 23, 2011

  • 7 Answers

SOURCE: I have a B&D 24

If the charger is lighting up its probably the battery. Rechargable batteries have a lifespan governed by the number of charges.
The only sure way of knowing is to have another battery or charger that you know does work.
if it is the battery its normally cheaper to buy another complete drill.

Posted on Sep 13, 2011

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No of course not.

The charger has to be the same as the battery it is charging. On BIG batteries, it also has to have the power to handle the higher amps as well.

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    Sep 20, 2016 | Health & Beauty

    1 Answer

    How can I hook two 12 volt batteries together to produce 24 volt output. I have replaced the two older batteries but have not been able to get the two new batteries to produce the necessary 24volts

    Hooking up 2 batteries (IN SERIES) will give you 24 volts. First make sure the 2 batteries are exactly the same. Do not use mismatched batteries. Hook the POSITIVE of first battery to the NEGATIVE of the second battery. Then hook your LEADS ( hot and ground) to the 2 remaining posts. That will give you 24 volts. When charging the batteries with a charger, hook the charger up to the LEAD POSTS.

    Apr 26, 2015 | Boating

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    Where is the fuse

    Based on what I see here, there is no fuse. Most likely an automatic overload protection. The system is reset by unplugging from 120vac. and waiting for a few minutes and plug back in,
    to accomplish a reset of the system.
    If this is not your precise model, you may be able to find it on the same website.

    Mar 18, 2015 | Guest 30 Amp Battery Charger

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    Okay, I'm working on a scooter for my nephew that originally came with (2) 12 volt 12Ah batteries minus the charger. and I know I need to replace them with (2) batteries of the same 12 volts and lets

    not exact, to charge apropiate needs 10% more than nominal voltage. if not, will not charge the batteries.
    And the charger its very important because you can over charge the battery.An example,if you have a 12 Amps Batteries each one if you put it in series will be 24 parallel conection will be 12 volts but the double of Amps.
    At serial connection will be 12 Volts the amps will be the same but the volts will be 24.

    The charger at 12 Volts must be 13.8-14.5 DC Volts and divide the Amps in Hours.
    The charger at 24 Volts must be 26-28 Volts. to charge well.

    The charger for 12 amps batt example must charge 2 amps per hour at 6 hours = 12 Amps.(2 Amps Charger by 6 Hours Charging= 12 Amps.(Fully Charged.
    3 Amperes Charger needs 4 Hours to charge 12 amps Batt.
    5 Amperes Charger needs 2 Hours charging an a quarter
    All of this is at DC Current.


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    How to fix a 24 volt black and decker battery charger

    You need to post MORE information like what is it doing or not doing and how you use this charger then we can eliminate operator trouble and focus on the charger.

    Jun 17, 2014 | Black & Decker Black And Decker FS24C...

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    Hooking up a 36 volt charger to three 12 volt batteries in series

    first of all do you have 3 or 4 batteries your cranking battery is not to be wired into this 36 volt if you have 4 batteries you have 3 for trolling motor and 1 cranking battery look on your charger see if the banks or numbered 1 2 3 4 .... you got to find what battery is # 1 depends on how they hooked in series if you hook charger on wrong battery most the time a red light comes on telling you wrong battery move wires till green lights come on all batteries.# 4 goes to cranking battery if you only have 3 batteries you don't have 36 volts you have 24 volts and a cranking battery if so # 3 goes to cranking battery

    Aug 29, 2013 | Minn Kota Boating

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    I have a JET Mobility Model 2904JT-24 Battery Charger that I would like to use to charge a 24-V project I'm working on. It's from a Pride Jet 2 HD. Trouble is, I only have the charger (no wheelchair) and...

    Blue Positive Brown negative, Yellow with green stripe is additional ground. many people are trying to use the 2904JT charger for a 24 volt charger for other things. I am using mine on an e bike that has 4 12 volt batteries. I charge them 2 at a time and it works well. It only shows voltage when the batteries are partially charged. Some kind of safety feature to keep you from charging a shorted battery. No schematics available, I took my chances and verified the Blue wire is positive. lol Good luck with you project or re wire. : )

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    I don't have any slow trolling speeds. Only fast speeds on my Pro Series 6700 trolling motor. Any ideas? Also, it is a 24 volt system. How do I properly hook up the batteries. The two batteries are...

    To hook up to 24 volts you need to join a positive cable from one battery to the source[motor or controller] and the the negative cable goes to the positive of the next of the next battery,then the negative [of battery #2] goes to ground,same for all 24 volt systems.If the slower speeds don't work then the rheostat in the accelerator handle could be at fault,but getting the 24 volts sorted out may fix everything.

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    Where can I find a replacement charger for the allegheny ciw114 impact wrench?

    If the battery is not damaged or totally dead, you can attempt to charge it with any
    24-Volt DC charger. The charging voltage rises to about 28 Volts when nothing is
    connected to the charger. You must first connect (with jumper leads) the positive
    charger output to the positive battery terminal. Use a test meter to determine the
    polarity of the battery. Also test the charger output to determine the polarity. Be
    sure to connect positive to positive and negative to negative. Do this before turning
    on the power to the charger. If the battery is a "smart" battery; that is with built-in
    electronic control circuit, the ordinary charger may not work. Normally, a battery
    will accept a charge until it is nearly completely charged and then the battery
    voltage will slowly "buck" the charging voltage. When the battery voltage and the
    charging voltage are equal, no more charging current will flow. Amperes, that is
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    volts and the charger is putting out 24 volts, NO current flows. The battery is then
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