OptiMate™ Monitor O-126SAE to DIN/AUTO 12 V socket adapter with state of charge monitor that plugs directly into your motorcycle, or ATV/UTV, 12 V power port - adapter with 24/7 battery status at a blink of an LEDSAE connection system fits any SAE standard 2 pin connector, includes in-line seal that mates with OptiMate SAEIdeal for 12 V lead-acid and 12.8 V lithium LFP (LiFePO4) batteriesBattery status indication every 3 seconds (LED blinks)Battery status indication for high performance AGMBattery status indication for lithium-ion LFPIncludes weatherproof sealing capFits both auto and bike sockets.