The best way to eliminate sulfation-the number one cause of battery failure-is to prevent it.
The Battery Tender Junior will fully charge a battery and maintain it at the proper storage voltage without the damaging effects caused by most trickle chargers (especially sulfation). How? Battery Tender Junior is much more than a trickle charger-- it has a brain! Lightweight, compact and fully automatic, Battery Tender Junior is very easy to use, especially in small spaces. It will keep your battery fully charged so that it is ready to go when you are! Perfect for all lead-acid, flooded or sealed maintenance free batteries, including AGM and gel cell batteries.
Four-Step Charging Process
Step 1: Initialization-Monitor circuit verifies appropriate battery voltage levels and good electrical continuity between battery and charger DC output.
Step 2: Bulk Charge-Constant current at full power. Bulk charge ends at approximately 75% to 80% of full battery recharge.
Step 3: Absorption Charge-Constant voltage at absorption level conditions battery for optimum performance. Absorption charge ends when battery charging current drops below the optimum recharge threshold or the absorption timer expires.
Step 4: Float Charge-Constant voltage at float/maintenance level keeps battery fully charged and maintains high specific gravity. Full charge reset monitor protects battery against excessive appliance current draw while charging. Float charge continues indefinitely.
- Automatically switches to float/maintenance voltage after fully charging the battery
- Full charger output resumes if the battery voltage drops too far under load
- Solid state two-color LED indicates charging stage
- Spark-proof even when output leads touch
- Short circuit protection
- Reverse polarity protection-no charger or battery damage
- 12' output cord for convenience
- Mfr. 5 year warranty
|Motorcycle, Boat, ATV battery (10 - 20 Ah) ||7-13 Hours |
|Truck Trolling Motor Battery (70 - 95 Ah) ||47-63 Hours |
|RV (100 - 155 Ah) ||67-103 Hours |
For maintenance only.
|RV (160 - 185 Ah) ||107-123 Hours |
For Maintenance only.
|RV (190 - 215 Ah) ||127-215 Hours
For maintenance only.
This item qualifies for Product Protection coverage!
Protect Your Investment!
Product Protection eliminates out-of-pocket expenses and protects against costly product repairs or replacement. We’ll cover 100% parts and labor for up to two years following the expiration of your manufacturer’s warranty. Warranty service is available at any Camping World location or at one of the 52,000 service centers across the U.S.