Dead Battery or starter ? Kubota L3200

roaf3

New member

Equipment
B7510
Apr 6, 2011
13
1
3
CT USA
The battery was as 12.3 volts today and I checked the voltage running with all the lights on.
I saw 13.8 volts at the battery.
This is odd but somehow it seems the 2 month old Interstate battery is bad ? or being drained somehow.
Is there a way to attach a video on this page ?
 
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fried1765

Well-known member

Equipment
Kubota L48 TLB, Ford 1920 FEL, Ford 8N, SCAG Liberty Z, Gravely Pro.
Nov 14, 2019
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Eastham, Ma
The battery was as 12.3 volts today and I checked the voltage running with all the lights on.
I saw 13.8 volts at the battery.
This is odd but somehow it seems the 2 month old Interstate battery is bad ? or being drained somehow.
Is there a way to attach a video on this page ?
Until/unless you get your battery load tested, you will likely continue tilting at windmills.
 
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85Hokie

Moderator
Staff member
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BX-25D ,PTB. Under Armor, '90&'92-B7100HST's, '06 BX1850 FEL
Jul 13, 2013
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Bedford - VA
The battery was as 12.3 volts today and I checked the voltage running with all the lights on.
I saw 13.8 volts at the battery.
This is odd but somehow it seems the 2 month old Interstate battery is bad ? or being drained somehow.
Is there a way to attach a video on this page ?
A reading of 12.3 is a bit on the low side - 13.8 WITH THE lights on is a good sign - I would imagine that once the lights are off - the reading climbs to 14 + volts?

Do you know how to use the meter when measuring milliamps?
Typically you must move the red lead to the other side - and rotate dial to AMPS....

unhook the neg side of the battery - and place one lead on the UNHOOKED side of the battery and the other lead on the lead you took off the battery. LEAVE key alone and see if there is any reading on the dial, should be zero or a very small amount, but damn close to zero.

If you have a reading - pull a fuse and recheck, do this and you will find the "gremlin" in the electrical works.

A battery that is under constant discharge will never catch up!
 
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roaf3

New member

Equipment
B7510
Apr 6, 2011
13
1
3
CT USA
Thx - I will do that as well. The alternator belt was a little loose. I snugged it up and they may also help. I would like to see 14 Volts at the BAT with the engine running. The RPM at 2000 should be more than enough to validate output.
Appreciate the guidance on the milliamps !