The Bradex BX60 is a popular, robust automatic battery charger designed for 12V lead-acid batteries, commonly found in cars, motorcycles, lawn tractors, and marine vehicles. Known for its microprocessor-controlled charging algorithm and multi-stage safety features, the BX60 is a favorite among DIY mechanics and professionals alike. However, like any sophisticated electronic device, operating it correctly requires a thorough understanding of its functions, indicators, and safety protocols. This guide will serve as your definitive resource—covering everything from initial setup to advanced troubleshooting.
| Display / LED | Meaning | Action Required | |---------------|---------|------------------| | Red Error LED + “Err” | Polarity reversed (clamps swapped) | Swap red/black clamps immediately. | | Flashing red + “bAt” | Battery voltage too low (<3V) for detection | Battery may be deeply sulfated. Try Repair mode for 1 hour. | | “FLO” on display | Float mode – charging complete | Safe to disconnect. | | “SUL” or “SULF” | Severe sulfation detected | Cycle to Repair mode. May take 24h. | | No display but power light on | Internal thermal shutdown | Let charger cool for 30 minutes in a ventilated area. | | Continuous beep while connected to battery | Clamp detection failure – poor contact | Clean terminals, retighten clamps. | bradex bx60 battery charger manual
A: The internal relay is testing the battery. If clicking continues for more than 30 seconds, the battery may have a dead short – disconnect and test with a multimeter. The Bradex BX60 is a popular, robust automatic
: The analog ammeter needle will move to show the charging current. As the battery fills, the needle will slowly drop toward zero. Disconnect This guide will serve as your definitive resource—covering