OptiMate® - Monitor Series Permanent Power Sport Battery Lead

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Vehicle Fitment

This part is universal

Product Details

Universal Monitor Series Permanent Power Sport Battery Lead (O-127) by OptiMate®. For 12.8/13.2V Lithium. Permanent battery lead (24"-60cm, 1/4"- M6 rings), integrated battery status / charge system monitor. Weatherproof battery lead with state of charge monitor for the 12.8V/13.2V LifePO4 / LFP battery in your parked performance vehicle - 24-7 battery status at a blink of an LED! Smart battery lead that measures voltage; monitors charge of a stored 12V Lithium (LMiFePO4) battery and confirms if the vehicle charging system is working correctly.


Length: 24" / 60cm (x20)
BATTERY CONNECTOR: 1/4" (M6) / 5/16" (M8) ringlets
CHARGE CONNECTOR: 2-pin SAE, protected from dirt and liquid with rubber sealing cap and shroud
Operation: 2 automatic Modes - Battery charge level monitor (single LED blink mode) & Charging system test (arrow mode)
Vehicle storage: 3 LEDs display 'full to empty' voltage range for 12.8V/13.2V Lithium batteries (LFP/LiFePO4/Lithium nano Phosphate); 4th LED warns when vehicle system or connected battery charger is OVERCHARGING! (long term draw less than 0.2mA)
Vehicle running: LED arrow mode activates when charge voltage reaches an effective lithium charge range of 14.2V - 14.5V (√green LED). OVERCHARGE warning activates at +14.6V
Cable Rating: 16 AWG (1.31mm2) SPT-2W
Fuse: 15 Amp
Use: -40°C/-40°F very low temperature, remains flexible at 'below freezing' temperatures
Style: Fully enclosed electronic circuitry with 4 LEDs, SAE charge connector with rubber sealing cap & shroud
Warranty: 3-year limited replacement warranty


  • With M6 / 1/4" - M8 / 5/16" ringlets that perfectly fit to powersport and most automotive battery terminals, and 15A fuse that protects the -40 rated cable and electronics - Premium quality
  • Sealed monitor with 3 LEDs indicate battery state of charge from full to empty for 12.8V / 13.2V LiFePO4 / LFP batteries - LED corresponding to charge level blinks every 5 seconds
  • SAE quick connect charge port for charging battery when needed - With weatherproof sealing cap when vehicle is moving
  • Displays charge system status when engine is running, with 4th LED warning if system is overcharging above 14.6V that can damage lithium - Easy pre-ride check at a glance to see if battery is receiving the correct charge

Since 1994, OptiMate® high performance battery chargers have been saving batteries other chargers can’t, then improving performance and extending life of AGM, GEL & STD lead-acid and LiFePO4 lithium batteries in power sport / motorcycle, automotive, motorsport, light aircraft and deep cycle applications world-wide. And they save OptiMate owners money – OptiMate’s energy saving, plug-in-anywhere (100-240V) electronics deliver more charge for less. If AC power is a problem, they have SOLAR and DC charging options too!

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OptiMate® - Monitor Series Permanent Power Sport Battery Lead

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