2007-11-29 08:02:15 · 3 answers · asked by Tom S 1 in Home & Garden ➔ Maintenance & Repairs
I would suggest looking for a shorted/grounded-out wire, and you may also want to test the voltage coming from the voltage regulator/alternator. The voltage should be about 13.0 volts DC when charging. Run the mower at full throttle for about 5 minutes after each start as that is about the time it takes to recharge from 1 start. If you have the tester on when you turn the motor over and the voltage drops below 10 V DC, then the battery probably has a dead cell. Hope this helps.
2007-11-29 08:13:40 · answer #1 · answered by trickster44 2 · 0⤊ 0⤋
I would suspect that the battery is bad. They only last a couple of years. I assume you mean that when the mower has been sitting for some time that the battery is low or dead. That is most likely a bad battery. On the other hand if your sure that the battery is good and it goes dead after starting it several times, it may be the alternator. It only uses the battery to start, it doesn't need it to run unless it has lights on it so it doesn't take much to keep it charged. Take the battery out or take one of the cables off and check the battery with a volt meter. It should be 12.5 or so volts. In a day or so check it again, if it is droping it is the battery.
2007-11-29 12:02:57 · answer #2 · answered by renpen 7 · 0⤊ 0⤋
Get a hydrometer from Auto zone and check each individual cell on that battery for acidity. I bet one of them is bad.
2007-11-29 13:11:22 · answer #3 · answered by bigapple 3 · 0⤊ 0⤋