Join Date: Feb 2009
Location: Northeastern BC
The little window is basically a built-in hydrometer to tell you the specific gravity of the electrolyte. It may be showing right, but sometimes the little pellets can get stuck. Try tapping the side of the battery or shaking the truck around.
Is it charging?
Check the voltage at the battery with the engine shut off. Next, turn on the engine and let it idle. The voltage across the battery should now be higher, around 13 to 14.5 volts.
If not, check the belt, make sure all your electrical connections are clean and tight.
You can also do a load test on a fully charged battery, either with a load tester, or a lot of places will do it for you for free, like Canadian Tire. That'll tell you if the battery is holding a charge.
If you drive your truck infrequently, or just on short trips, you might want to get a little battery charger to keep it topped-up.
If Princess Auto were a real girl, I'd ask her to marry me.