Diehard

Buying Guide: Battery Chargers and Booster Cables

Automatic Battery Chargers and Maintainers
The 4 amp, 6 amp and 10 amp models are automatic 12 volt chargers, and the .8 amp model is for stored or infrequently used 12 volt batteries. The 6 amp model has multi-stage charging, and the 4 amp model has two banks that let you charge or maintain two batteries at once. Match the volts setting to your battery, and check your vehicle manual for the amp rating it recommends.

Engine Starter Charger
The 250 amp automatic battery charger and engine starter works on 6 volt and 12 volt batteries, including standard, AGM and gel cell types. It has wheels, a 50 amp boost rate, a total reach of 12 feet and a 6-gauge output cable. Check your vehicle or equipment manual before you connect it to a battery.

Booster Cables and Clamps
The 12 ft. set is 10 gauge, the 16 ft. set is 8 gauge, and the 20 ft. set is 4 gauge and 250 amp. The 12 ft. and 16 ft. sets have red and black clamps, and cable colors vary by set. Measure the distance you need to reach before you choose a length.

Frequently Asked Questions

What does Diehard offer?
Diehard offers automatic 12 volt battery chargers and maintainers, a 250 amp battery charger and engine starter, and booster cables in 12 ft., 16 ft. and 20 ft. lengths. The 12 ft., 16 ft. and 20 ft. sets are 10, 8 and 4 gauge, and the 12 ft. and 16 ft. sets have red and black clamps.

How do I choose the right charger or cable?
For a charger, match the volts setting to your battery, 6 volt or 12 volt, and compare the amp rating with your vehicle manual. For cables, measure the distance you need to reach, choose a length to match, and check the gauge before you buy.

Can the 250 amp charger be used on 6 volt batteries?
Yes. The 250 amp charger and engine starter can be used on 6 volt and 12 volt batteries, including standard, AGM and gel cell types. It has wheels, a total reach of 12 feet and a 6-gauge output cable. Check your vehicle or equipment manual before you connect it.