BS Battery BT 03 Battery Indicator The BS Battery BT 03 takes the guesswork out of checking battery health, especially when the battery sits in a hard-to-reach tray. Built for garage professionals and daily riders, it combines quick LED diagnostics with a permanent charger lead in a slim, convenient accessory. Equipped with M8 eyelet terminals, the BT 03 bolts directly to the battery posts and leaves an accessible SAE connection port exposed. Its integrated 3-Led display provides immediate color-coded feedback on a 12V lead-acid battery's state of charge: Green Good, Orange Fair and Red Charge Now. When it is time to top off, simply plug a compatible BS Smart Charger into the SAE port with no clamps, no seat removal and no hassle. Features: 3-stage color-coded LEDs (Green, Orange, Red) provide clear state-of-charge status at a glance Permanent eyelet harness eliminates the need to expose hidden or hard-to-reach batteries Integrated SAE charge port connects directly to all BS Smart Chargers for seamless maintenance Features a tight-sealing rubber cap on the SAE port to keep out dirt, rain, and road grime Protected by an inline 10A fuse to safeguard your vehicle's electrical system Note: Designed for 12V Lead-Acid batteries only