Dead battery 1991 trailblazer 350l. Battery drains and does not charge when running.

not a car it is ATV offroad
same on all things like this that is a DC battery feed power loss
pure electrical failures.
fuses bad or loose?
battery is bad as it is intermittent and they do that.
so key on all power is lost, so a voltmeter in hand finds them all
if still dead testing
bad battery lugs and cable ends. loose or rusty.
the dash dead smacks of full power loss !

\and will be seen too in the fuse box, 12vdc lost there or even everywhere there dead. and bingo that. for sure.
learn to do the test fast only when dead dash.

if battery box fuses all then dead , so is the battery now.
batteries have many failure mode.
dead
or intermittent (hot ..,/cold or vibration )
or open cell 1 of 6 (2 volts per cell)
see 10volts there a cell is dead.!!!
12.6vdc is charged battery state, rested.
or jumper cable jump start the battery in ATV from car.
if dash wakes up bingo your ATV battery is bad.
buy the service manual for Kawasaki and see all that clearly

battery is being drained as it operates and not taking charge

check tightness and clean both terminals and cables

how old is the battery
may have a dead cell ..wont take charge

check the charging input to the battery with a volt meter
has to be above 12 volts
if lower or equal to 12 volts ...no good
the charging stator inside the engine needs testing or repair or replace

stator is another word for an alternator or a generator


why it plays up
best guess the ATV if a 12 volts system wont run on 11 volts

Sketer, check all fuses, could be the stator..also the regulator/rectifier faulty. Google search your make and model# manual.Check the attached links,instruction and guides, Good luck
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."
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replace the faulty fan relay or check for a problem wire from the ignition to the sensor to the relay

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Clean the battery contacts really well. Are you using the vehicle, or is it just being stored? The charging system may be having problems due to a weak connection. Or there could be a trickle drain happening (like a small light that is being left on and draining the battery).

If you need further help, reach me via phone at https://www.6ya.com/expert/nelson_99da2976c0ca0f8b

Hi Jasper:
Have you tried jump starting from another vehicle?
It may be that your battery is just not putting out enough amps.
RV and motorcycle batteries tend to not last as long as car batteries.

When a battery dies while the engine is running it is not being charged. When the charger is working the engine will run without a battery

Could have a wire short out to ground