What voltage should i see on my meter at idle and at say 3000 rpms. I was running my sprayer today and for not really that long and it has run my battery died anyone had that problem
to properly charge and maintain a charge in a battery you must have more voltage going in than the static/standing voltage of the battery . all batteries will have a standing voltage of around 12.5v and to properly charge a battery when running you need 14v , i know a lot of you are saying that you see 13.2 to 13.8 volts IMO thats too low to maintain a proper charge . 13.8v is the bare minimum that i like to see in the work i do .
without knowing what your voltage was when running your sprayer i can only guess what happened , these factory batteries do not have much for reserve capacity if you were running it with the engine off . remember too
the size of these batteries and the electronics always pull a small amount of amps even when the key is off . if youve added a radio that pulls a lil more . and if your prowler isnt drivn every few days to recharge the battery , and you fire it up witha weak battery and start spraying the stator isnt strong enough to charge a low battery quickly . these stators are designed to maintain a battery , not recharge a dead one .
with that said charge your battery , then test the standing voltage after about 30 mins before starting , if it drops into the 11or 10 or lower volts from the 12.5 after you removed the charger it probaly has a bad cell .
if thats ok start the engine and check the voltage at the battery, with the engine running , you should see 13.5 min to 14.8 v then turn on your pump , and check the volts again with the load and see how much its dropped , if any . the stator should be able to maintain charging voltage of a sprayer pump unless you have the pump hooked up to a cooler motor ?lol
remember to charge and test your battery first ! if you have a weak battery the startor will be a max output trying to charge it and when you add more amp draw it will max out the output of the stator and fail to charge .
also check all of the battery connections and the grounds on the frame . poor connections = poor charge