• Steel Soldiers now has a few new forums, read more about it at: New Munitions Forums!

  • Microsoft MSN, Live, Hotmail, Outlook email users may not be receiving emails. We are working to resolve this issue. Please add support@steelsoldiers.com to your trusted contacts.

 

Hot batteries

carc383

New member
22
2
3
Location
CECILIA / LA
I have a m998 today used it ran fine but when I shut off everything is dead. Nothing works I checked batteries and they where very hot I’m thinking maybe alternator overcharged them I noticed gauge in red ? Is there a fuse or were do I start looking to find power again? I changed alternator last year because of not charging. Thanks if anybody can give me advice
 

warcow105

Member
100
4
18
Location
Lincoln Park, NJ
Throw a meter on the batteries to see if you have juice. If you cooked them then just replace them. If that fixes it and you can start the truck, measure and see what voltage the alternator is putting out.


Mike
 

papakb

Well-known member
2,288
1,185
113
Location
San Jose, Ca
Be careful when you measure the batteries and charging circuit. A new set of batteries will hold the voltage down to around normal when the alternator is not regulating properly. I had an M151 once that cooked the batteries and when I measured the alternator it was reading 28.9 volts in the vehicle but when I put it on the bench it was actually outputting 90 volts!

Never connect or disconnect the batteries with the vehicle running, it's the best way to kill the alternator and be real careful when removing the connector cover on the alternator, it's easy to short the full output of the batteries to ground if it hits the large output post.
 

TOBASH

Father, Surgeon, Cantankerous Grouch
Steel Soldiers Supporter
3,173
2,800
113
Location
Brooklyn, NY
Be careful when you measure the batteries and charging circuit. A new set of batteries will hold the voltage down to around normal when the alternator is not regulating properly. I had an M151 once that cooked the batteries and when I measured the alternator it was reading 28.9 volts in the vehicle but when I put it on the bench it was actually outputting 90 volts!

Never connect or disconnect the batteries with the vehicle running, it's the best way to kill the alternator and be real careful when removing the connector cover on the alternator, it's easy to short the full output of the batteries to ground if it hits the large output post.
AND DISCONNECT BATTERIES TO ENSURE PCB/EESS NOT DAMAGED!

Sorry for yelling but hey, really important point.
 
Top
AdBlock Detected

We get it, advertisements are annoying!

Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website like our supporting vendors. Their ads help keep Steel Soldiers going. Please consider disabling your ad blockers for the site. Thanks!

I've Disabled AdBlock
No Thanks