Best way to charge or jump start HMMWV ?

[TheGreatMidwest]

Wanted to find out what others were doing in order to 'safely' jump start and charge their HMMWV ? Assuming there are no other NATO vehicles handy for jumping. What's the safest way to charge and jump start the M998 without damaging the engine electronics such as glow plug controller?

Thanks!

 

[DatGuyC]

Take the batteries out and charge them independently if you only have a 12v charger. If you need to jump start it you could try hooking up the jumper cables to only one battery but I'm not sure if that would fry anything. Safest thing it to charge them separately.

 

[MWMULES]

If you only have 12V I use the first battery to jump start. Works great and it will not hurt anything. The best way would to charge each battery on it's own when dead and jointly to maintain them , I choose to use a NOCO Genius G7200 12V/24 charger/maintainer.

BTW, per site rules please change your profile to reflect the middle of which no where State you live in. (Thanks)

 

[TheGreatMidwest]

If you only have 12V I use the first battery to jump start. Works great and it will not hurt anything. The best way would to charge each battery on it's own when dead and jointly to maintain them , I choose to use a NOCO Genius G7200 12V/24 charger/maintainer. (Thanks)

Thanks, I was checking out that model of charger after you suggested it, comes in a wide range of amp ratings. Do you know which model of the G7200 you're using? The different flavors are: .75 Amp
1.1 Amp
15 Amp
26 Amp
3.5 Amp
4.4 Amp
and 7.2 Amp

 

[Mike82ndABN]

the 7200 is 7.2 amp.
the 1100 is 1.1 amp
the 15000 is 1.5 amp

basically the 7200 only comes in 7.2amp, if you select a different amp model, it has a whole different model number.

 

[Daybreak]

Howdy,
Noco Genius chargers come in many flavors.

24volt charging thru slave port thread

The Noco Genius G7200 is a smart charger and works for 12-volt and 24-volt stuff.

 

[KansasBobcat]

I use a 24 volt charger thru slave port to maintain.

 

[M1224]

Definitely invest in a good 24v Charger.

For jump starting, I am making a cart with 2 deep cycle 12V batteries that will be wired for 12 and 24 volt with multiple cables, including a NATO Slave cable. This way I can jump start anything.

 

[TheGreatMidwest]

the 7200 is 7.2 amp.
the 1100 is 1.1 amp
the 15000 is 1.5 amp

basically the 7200 only comes in 7.2amp, if you select a different amp model, it has a whole different model number.

Ah! Amazon didn't display the products separately, it brought up the 7200 with a checkbox for the different amp rating. Thank you for clarifying that!

 

[TheGreatMidwest]

Definitely invest in a good 24v Charger.

For jump starting, I am making a cart with 2 deep cycle 12V batteries that will be wired for 12 and 24 volt with multiple cables, including a NATO Slave cable. This way I can jump start anything.

Nice setup. I do have two deep-cycle 12 v marine batteries wired up in series for 24 v. I wanted to add a NATO cable... but... darn expensive on Ebay!

 

[Mike82ndABN]

Ah! Amazon didn't display the products separately, it brought up the 7200 with a checkbox for the different amp rating. Thank you for clarifying that!

yea it's set up weird. If you change the amp rating on Amazon it will change the model.