4A Smart Charger and Battery Maintainer | RSC804/RESC804 | Ring Automotive
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4A Smart Charger and Battery Maintainer

For long-term connection 6V/12V

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Smart Car Battery Chargers /  RSC804
RSC804 4A Smart Battery Charger with Cables
RSC804 Smart Battery Charger
RSC804 Smart Battery Charger with Hanging Hook
RSC804 Smart Battery Charger hooked on hood
RSC804 Smart Battery Charger in use under hood


The Ring RSC804 is a 4A smart charger and battery maintainer suitable for 6V and 12V vehicles and recommended for START/STOP batteries. Compatible with lead acid, gel, calcium, EFB and AGM batteries. Keeps batteries in good condition without risk of overcharging. One button operation and large LCD backlit display for ease of use as well as reverse polarity and short-circuit protection for safety. Connect and be sure with the charger adjusting automatically to long-term maintenance mode when the vehicle's battery is full.

Available with three pin plug (part number RSC804) and two pin plug (part number RESC804)

For Ring's full range of battery care, including Smart Battery Chargers, click here

  • 4A Smart charger and battery maintainer
  • For 6V and 12V vehicles
  • Stop/Start compatible
  • Up to 2A or 4A charge rate selection
  • 7-Stage charging process
  • Large LCD display screen that clearly shows voltage and charging process
  • Cold weather charging mode that protects batteries in cold temperatures
  • Quick connectors with clamps or O-ring terminals for long term connection
  • One button operation for ease-of-use
  • Backlit display can be seen in low light
  • Reverse polarity and short-circuit protection
  • Connect and be sure - automatically adjusts to long-term maintenance mode when battery is full
Product dimensions (mm): HxWxD
147 x 85 x 53
Weight (kg)

Available as

Code: RSC804


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