Rally Marine Grade 20 Amp Quick Battery Charger and Maintainer with Microprocessor – Link
This is on sale via Amazon right now for its lowest ever of only $22.21! Amazon normally sells this for about $50-$60.
- Use on all 12 volt lead acid, marine, AGM and gel batteries
- Corrosion resistant circuit board and clamps with spark resistant reverse hook-up and overcharge protection
- Selectable 2,10, or 20 amperes charge for all your needs, from trickle to quick charge
- High frequency technology delivers a faster amd more efficient charge; built in microprocessor technology monitors the battery charge to provide the best condition to prolong battery life
- 3 Minutes to Start, Approx. 2.5 Hours to full charge