OptiMate 1 DUO

MSRP $49.95

BRONZE series: 4-step 12V / 12.8V 0.6A battery maintainer

OptiMate 1 DUO automatically adapts to the connected battery type – Guarantees healthy lithium or lead-acid batteries!
The optimate 1 duo adapts automatically to the connected battery type: Lithium or standard.


Ideal for batteries found in these vehicles.
Optimate 1 DUO is ideal for motorcycles, ATVs, scooters and jet skis


Charges and delivers long term maintenance automatically – OptiMate 1 DUO makes your battery stronger and last longer, no supervision required!
The steps for long term maintenance: Connect, charge and maintain.




For all 12V power sport battery types including lead-acid (Pb) > STD (with filler caps), AGM & GEL (sealed VRLA) ) and Li-Ion made with LiFePO4 / LFP technology.

Safe to leave connected. Full electronic protection.
Maintains battery at full charge and good health.
Low Volt Start of 4V.
Energy saving technology.
Stand-by power less than 0.5W.
Efficient 24-7 battery maintenance.
Dustproof. Rated for indoor use down to -20°C / -4°F.
Includes 2 interchangeable battery connection accessories.



The OptiMate 1 DUO can be used for 12V lead-acid (STD, AGM and GEL) and 12.8/13.2V lithium (LiFePO4 /LFP) batteries, used for engine start & deep cycle applications. For batteries from 2Ah to 28Ah for 24-7 battery maintenance. Can recharge batteries up to 15Ah within 24hours

The time required for the OptiMate 1 to complete a charge on a flat but otherwise undamaged battery is roughly equal to 1.5x the battery’s Ah rating, so a 32Ah battery should take no more than about 48 hours to progress to Step 3. Deep-discharged batteries may take significantly longer.

The OptiMate 1 DUO can only be used on 4 cell Lithium Iron Phosphate also known as Lithium Ferrous Phosphate or LFP (chemical formula LiFePO4) of 12.8V/13.2V.

No, the adaptive program adjusts to the battery type.

VIDEO Answers:

Can OptiMate 1 DUO charge both a 12V lead-acid and a 12.8V Lithium battery?


Why is the yellow and green LEDs alternating?

SKU: TM-40xD Category:


Includes 2 battery connection cable accessories

  1. Battery lead (replacement SKU O-01) – fits to battery in your vehicle for convenient ‘quick-connect’ charging access.










Adjustable: Fits two bolt sizes

  2. Battery clips (replacement SKU O-04) –

Fits securely to square, round or flat battery posts.



Available models are listed below. 

All OptiMate battery chargers listed below accept global input of 100-240Vac 50-60Hz, only the power plug TYPE is different to comply with national / regional electrical safety laws.

TYPE A – Canada / United States of America


TYPE C – Europe

TYPE G – United Kingdom

TYPE I – Australia / New Zealand

Identical co-branded versions (made by TecMate): 




MSRP = Manufacturer Recommended Retail Pricing is displayed above. (Currency selector > top right).
Price in EURO and GBP include VAT of 20%. VAT in your region may differ. Price in USD and CAD do not include sales tax.

TecMate do not sell product directly to the consumer. Find your nearest retailer by selecting the appropriate model below.


SKU: TM-409-D

SKU: TM-409-D

SKU: TM-402-D

SKU: TM-404-D


IDEAL FOR: AGM, GEL & STD 12V batteries & Lithium (LiFePO4) 12.8/13.2V batteries from 2 – 20Ah

CHARGING AMPS: 0.6A (constant current)

CHARGING VOLTS: nominal: 12V & 12.8V range: 4V - 14.4V

OPERATION:  Fully automatic


FEATURES: Low Volt Start step adjusts charge parameters to match battery type; 24-7 safe long term maintenance.

USE: Indoor (lowest temperature: -4°F / -20°C).

INPUT: Global (100-240V 50-60Hz), high efficiency (CEC listed).

STYLE: Dust proof plug-in case, with 12ft / 370cm charge lead ending in SAE connector.

SAFE: No risk of overcharging. Totally safe for vehicle electronics. Sparks suppressed. Safe for long-term battery maintenance. Automatic shut-down if short-circuited or battery disconnected.

INCLUDED: Weatherproof battery lead & battery clip set.

WARRANTY: 3-year limited replacement warranty.