What Size Onboard RV Battery Charger to Choose for a Single Battery?
To charge a single RV battery, use a charger rated at 10% to 20% of the battery’s amp-hour (Ah) rating. For a 100Ah battery, select at least a 10-amp charger. A 15-amp charger works well for larger Group 31 batteries and typically recharges them within 3-5 hours. For faster charging, consider a 30-amp charger. Consider … Read more