Try eautorepair.net. There is a small charge for 7 day access.
Either something is on and pulling juice, or the battery is old and cannot hold the charge.
A long slow trickle charge (3 amp or less) is always best for the battery.
If you are 100% sure the alternator is good, then either the wiring or the battery are bad. If the battery has a dead cell it will not hold a charge. Disconnect the battery cables and clean the connections. Charge the battery with a battery charger, and then connect the cables. If the battery is over 3 years old, it is more than likely bad.
Volkswagen Taro was created in 1989.
New battery needs a charge? Loose or corroded battery cable? Engine seized? Bad starter Bad starter solenoid? Bad neutral or clutch safety switch?
Remove the battery, or disconnect it, and with any 10 amp/ 2amp, charger, pos to pos, neg. to neg. and charge it at 2 amp, till it is full. If you need to add water, add only distilled water to top the battery up. Use a charger with auto-shut off.
A fuel system diagram for a 1989 Volkswagen Diesel Jetta can be found in an automotive repair manual. Chilton is a company that makes repair manuals for most vehicles.
Love Battery was created in 1989.
most likely it is because items, such as lights (trunk, etc.) are left on. Or that there is a short in one of the alternator diodes (is it charging correctly?). Or the battery is just old and no longer holds a charge. How often between running the car? It could be tha you dont give the battery enough time to charge sufficiently.
I'm not a mechanic / technician but if your battery is overcharging or the headlights are too bright so people are flashing their headlights at you when you are just using low beams ( it sounds like a voltage regulator problem )
the location of the battery is under the rear passenger seat