The OptiMate 4 Quad Program is a 1.25 Amp charger, tester and maintainer for riders who own both lead-acid and lithium batteries, or who ride a BMW with a CAN-bus electrical system. Pick one of four programs with the selector and it handles the rest: it tests the battery, recovers it if it's deeply discharged, charges it and then maintains it for as long as it stays connected.
Two of the programs are made for BMW CAN-bus motorcycles and activate automatically, so you can charge through the bike's power socket. The other two cover standard 12V lead-acid batteries (with smart desulphation from 0.5V) and 12.8V LiFePO4 lithium batteries (with low-volt recovery and BMS reset).
Key Features
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Four selectable programs: 12V lead-acid smart desulphation, 12V BMW CAN-bus, 12.8V lithium low-volt recovery and 12.8V lithium BMW CAN-bus.
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BMW CAN-bus compatible: automatic activation for charging through the CAN-bus power socket on BMW motorcycles.
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Lead-acid and lithium: handles 12V flooded (STD), AGM and GEL batteries plus 12.8V/13.2V LiFePO4 (LFP) lithium.
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Recovery: smart desulphation from 0.5V for lead-acid, low-volt recovery and BMS reset for lithium.
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Tests the battery: checks state of health before and after charging, then continues charging if healthy or stops and warns if faulty.
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Safe to leave connected: full electronic protection, sparks suppressed, no risk of overcharging, and 24/7 maintenance that keeps the battery topped up while supporting always-on circuitry.
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Weatherproof: sealed case with wall mounts, rated for use down to -40°F (-40°C), with standby power under 0.5W.
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Hanging hook included: hang the charger from the handlebar while it works.
Specifications
- Battery types: 12V lead-acid (STD, AGM, GEL) and 12.8V/13.2V LiFePO4 (LFP) lithium
- Ideal battery size: lead-acid 4 to 30Ah, lithium 2 to 15Ah
- Charge current: 1.25A constant current
- Voltage: 12V and 12.8V nominal, 0.5V to 14.4V range
- Charge program: 9 steps
- Programs: 1) 12V smart desulphation 0.5-14.4V, 2) 12V BMW CAN-bus 5-14.4V, 3) 12.8V low-volt recovery 0.5-14.4V, 4) 12.8V BMW CAN-bus 8.8-14.4V
- Input: 100-240V AC, 50-60Hz, high efficiency (CEC listed)
- Leads: 6 ft (180 cm) AC supply lead, 6 ft (180 cm) charge lead with SAE connector
- Operating temperature: down to -40°F (-40°C)
- Weight: 1.9 lb (estimated shipping weight)
What's Included
- OptiMate 4 Quad Program charger (US plug)
- Weatherproof permanent battery lead (O-01)
- Battery clip set (O-04), fits square, round or flat posts
- Hanging hook (O-411)
Great for: BMW and other motorcycles, scooters, ATVs, personal watercraft and snowmobiles with lead-acid or LiFePO4 lithium batteries up to about 30Ah.
Add-Ons (sold separately): Click to add:
Ride a BMW or Triumph with a DIN power socket? The OptiMate 4 Quad Program Premium Edition includes the O-19 SAE-to-DIN adapter so you can charge straight through the socket.
Warranty
Backed by OptiMate's 3-year limited replacement warranty.
Part Numbers:
Manufacturer: TM631
P/N: 3807-0675
