What I use on my car, looks like it will work, $22---Walmart.The Schumacher SC-600A SpeedCharge is a fully automatic battery charger that uses advanced technology to charge up to twice as fast as conventional chargers. It offers 6-, 4-, and 2-amp charging modes to efficiently charge and maintain connected batteries. The 50-amp clamps are compatible with both top and side-mounted battery posts. Its easy-to-read LED indicators show battery charge status at a glance.
Multi-stage, automatic charging for 6V and 12V batteries
[h=5]Multiple Charging Modes[/h]Choose from 2-amp, 4-amp, and 6-amp charging modes to quickly charge all types and sizes of batteries. In 6-amp Fast Charge mode, the charger monitors battery condition and adjusts charge rate downward to prevent battery damage for car, small truck, motorcycle, and lawn tractor lead-acid and AGM battery types. 4-amp Medium Charge is a self-adjusting charge rate that's ideal for everyday charging needs and for keeping your battery in peak condition. 2-amp Slow Charge is a trickle setting for charging and maintaining small batteries, such as those for motorcycles, ATVs, snowmobiles and lawn tractors.
[h=5]Electronic Push Button Controls[/h]The SC-600A features easy-to-feel switches for selection of Charge Rate or Battery Type. Choose between 6- or 12-volt batteries, as well as selecting Fast, Medium, or Slow Charge.
[h=5]Sturdy, Built-In Handle[/h]The built-in handle serves as convenient cord wrap for the 50-amp clamps and power cord, in addition to providing easy portability.
[h=5]Microprocessor Controlled[/h]Microprocessor Controlled Technology with multi-stage charging lets the Schumacher SC-600A deliver added precision, safety, and battery life. This technology lets you charge your motorcycle, car, or utility vehicle batteries up to 2x faster than using conventional chargers.
[h=5]Fully Automatic Operation[/h]The SC-600A automatically switches from Continuous Charge to Float-Mode Monitoring, which allows the charger to maintain the battery when fully charged. The SC-600A resumes continuous charging when the battery becomes discharged.
[h=4]Technical Specifications[/h]
- Input Voltage: 120V AC
- Output Voltage: 6V/12VDC
- Output Power: 2A/4A/6A continuous
- Amperage Control: Push-button
- RoHS Compliant: Yes