The OptiMate 3 is a 0.8 Amp, 7-step charger and maintainer for the 12V lead-acid batteries in motorcycles, scooters, ATVs and other powersport machines. It diagnoses the battery, recovers it if it's deeply discharged or sulphated, charges it and tests its state of health, then maintains it safely for weeks or months while the bike sits.
It starts recovering from as low as 0.5V, which revives a lot of batteries other maintainers give up on. It's for 12V lead-acid batteries (flooded, AGM, GEL, EFB); for a lithium battery, choose the OptiMate Lithium 4s 0.8A or the OptiMate 2 Duo.
Key Features
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7-step automatic program: no supervision required.
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Low-volt start of 0.5V: saves deeply discharged batteries.
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Recovery: low-volt start plus 2-step desulphation recovery for sulphated batteries.
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Battery health test: tests state of health so you can check battery status at a glance.
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Safe to leave connected: no risk of overcharging, safe for vehicle electronics, sparks suppressed, automatic shut-down if short-circuited or disconnected.
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Energy saving: standby power under 0.5W.
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Weatherproof: sealed case with wall mounts, rated for indoor or outdoor use down to -40°F (-40°C).
Specifications
- Battery types: 12V lead-acid STD (flooded), AGM, GEL, EFB and deep cycle
- Battery size: 2.5 to 38Ah for maintenance, recharges up to 19Ah within 24 hours
- Charge current: 0.8A constant current
- Voltage: 12V nominal, 0.5V to 14.4V range
- Charge program: 7 steps, fully automatic
- 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: 1.55 lb (shipping)
What's Included
- OptiMate 3 charger (US plug)
- Weatherproof permanent battery lead (O-01)
- Battery clip set (O-04), fits square, round or flat posts
Great for: motorcycles, scooters, ATVs, personal watercraft, snowmobiles and lawn mowers with 12V lead-acid batteries.
Add-Ons (sold separately): Click to add:
More than one bike? See the OptiMate 3 2-Bank and OptiMate 3 4-Bank versions.
Warranty
Backed by OptiMate's 3-year limited replacement warranty.
Part Numbers:
Manufacturer: TM431
P/N: 3807-0261
