Shopping Cart

Your cart is empty.

Your cart is empty.

OptiMate 2 DUO, TM-551, 2A Battery Charger & Maintainer for all 12/12.8V Cars, Motorcycles and Powersport Batteries

5.0 (10) Write Review
Free shipping on orders over $31.42

$61.10

$ 24 .13 $24.13

In Stock

About this item

  • OptiMate 2 DUO is the 'ALL IN ONE' general purpose battery charger and maintainer that assures batteries are always ready to perform. automatically adapts to the connected battery type – Guarantees healthy lithium or lead-acid batteries!
  • Ideal for batteries found in Harleys, Cars, Small Boats, Jet-skis or ATV with AGM, GEL & STD 12V batteries from 6 – 96Ah & Lithium (LiFePO4) 12.8/13.2V batteries from 2 – 24Ah
  • Charging is fully automatic. The automatic 5-step program saves a discharged battery from as low as 4 Volts and will then charge and maintain the battery, all automatically with long-term maintenance mode that keeps the battery at its optimal level 24-7.
  • Tests battery state of health and warns if the battery loses charge. Due to the poor health of the battery/age. Or a high drain in the vehicle indicating other issues.
  • Safe to charge in vehicle with provided O-01 fused battery harness lead or O-04 battery clips. 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.


Product Description

LOGO

DUO

BATTERIES

ADAPTS

WHATS IN THE BOX

SAVES

WARNS

SAFE

FULLY AUTOMATIC


Sylvain Laflamme
Reviewed in Canada on March 16, 2025
Very happy with purchase. I bought an other one
JP Seattle
Reviewed in the United States on July 13, 2024
I purchased this several months ago and it has worked well to charge my Ducati motorcycle. Absolutely no issues and the reason I bought it is that this company actually developed the Ducati branded chargers, which are sold for a lot more. Overall, a really solid charger and I would recommend.
Floridaguy
Reviewed in the United States on March 22, 2024
I use this alot and I like it
Steve H
Reviewed in the United States on January 30, 2024
Bought one for my Goldwing so it's ready to go at a moments notice. Liked it so well I bought a second for my lawnmower.
alain fecteau
Reviewed in Canada on January 24, 2024
Charger une batterie
Customer
Reviewed in Canada on June 8, 2023
Chargeur très utile pour gérer différents types de batteries
John
Reviewed in the United States on March 15, 2023
I've boughten a few of these chargers and they are amazing. Set it and forget it. Your batteries will last longer and in the long run this charger will save you money. A new battery is more than this charger alone. Maintenance is everything. Take care of your belongings people.
Mohamed Ismail
Reviewed in Canada on December 21, 2023
Bought for boat. Just to keep the battery topped up. Seems to work fine. Very easy to use, I have the mate connection, instructions are clear.
Keith D. Keller
Reviewed in the United States on December 15, 2023
I bought this Optimate Duo to keep the Shorai LiFe battery in my KTM 690 Duke in top shape. Very affordable and works great with the latest lithium iron motorcycle batteries. Highly recommended.
Doreen Johnston
Reviewed in Canada on September 23, 2021
What I liked the most is without adding the other leads that come with it , it plugs into the connector on my 2021 Street Glide. I can then take the other lead and easily connect to my jet boat. I can use the third lead on my car. It makes it very easy to switch between applications. I have not had the charger very long but so far it works great and I would buy again.
Recommended Products
CTEK (56-353) Multi US 7002 12-Volt Battery Charger, Black

$154.61

$ 67 .89 $67.89

4.7
Select Option
CERRXIAN 30CM 12AWG SAE Socket Solar Weatherproof Sidewall Port DIY Cord, SAE Quick Disconnect Wire Harness Panel Mount Power Cable with Cap for Motorcycle, Car, Generator

$9.05

$ 4 .52 $4.52

4.4
Select Option
NOCO GENIUS2X2, 2-Bank, 4A (2A/Bank) Car Battery Charger, 6V and 12V Automotive Battery Charger, Battery Maintainer, Trickle Charger and Desulfator for AGM, Lithium, Motorcycle, and RV Batteries

$113.15

$ 52 .80 $52.80

5.0
Select Option
Victron Energy Orion-Tr Smart 12/12-Volt 30 amp 360-Watt DC-DC Charger Non-Isolated (Bluetooth)

$232.95

$ 74 .69 $74.69

4.6
Select Option
YONHAN Battery Charger 20A 12V/24V LiFePO4 Lead Acid Fully Automatic Battery Maintainer, Car Battery Trickle Charger Automotive w/Battery Repair, Winter Mode, for AGM, STD, Gel, Deep Cycle Batteries

$52.80

$ 21 .12 $21.12

5.0
Select Option
Battery Board,10S 36V 30A BMS PCB Board with Balance Function for Li-ion Battery Cell,for Electric Car, Electric Power Assistant Car, Skateboard Car,

$16.02

$ 7 .54 $7.54

4.6
Select Option
12V 24V Car Battery Charger Heavy Duty, 0-15A Automatic Battery Maintainer, Smart Trickle Charger with Auto Shutoffs, Repair, Winter Mode, for Automotive Car Truck Motorcycle RV AGM Deep Cycle

$128.24

$ 61 .10 $61.10

4.5
Select Option
12V Volt 1500mA Sealed Lead Acid Rechargeable Battery Charger 1.5A

$12.06

$ 6 .03 $6.03

4.6
Select Option