What is the difference between the 12.8V Duo versus the regular one?

The 12.8 V Dou is suitable for lithium-ion batteries as well as lead acid batteries.

What is the difference between all the chargers optimate offers? i want to charge an agm battery, prius 2001 car. thanks.

The one I have is a maintenance charger it charges and maintains battery health and longlife

The company which is Tecmate was founded in Belgium in 1994. They manufacture chargers for many brand names, however I'm not sure where they are actually made!

Will this charge a dead 12v auto battery? Or is it used just to maintain a battery?

*Perfect for charge and maintenance of all 12V lead-acid (STD, AGM, GEL) and 12V LiFePO4 'Lithium'.

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🔌 Keep your ride charged and ready—because your battery deserves VIP treatment!

GLOBAL READY COMPACT - Works worldwide (100-240V), with a sleek, wall-mountable design and long 6ft leads for flexible installation.
EFFORTLESS BATTERY CARE - Connect & forget automatic maintenance keeps your hybrid or start/stop vehicle battery optimized without hassle.
BUILT FOR ANY ENVIRONMENT - Weatherproof casing and leads ensure dependable indoor/outdoor use even in freezing temperatures down to -20°C (-4°F).
UNIVERSAL 12 V COMPATIBILITY - Supports STD, AGM, EFB & GEL batteries from 3 to 96Ah—perfect for a wide range of modern vehicles.
POWER SAVING LOW VOLT RESCUE - Revives deeply discharged batteries down to 2V, extending battery life and reliability.

The OptiMATE 2 TM-421 is a compact, fully sealed 12V battery charger and maintainer delivering a steady 0.8A charge. Designed for modern hybrid and Eco Start/Stop vehicles, it supports multiple battery types (STD, AGM, EFB, GEL) from 3 to 96Ah. Its weatherproof design and global voltage compatibility make it ideal for year-round, worldwide use, ensuring your battery stays healthy and ready no matter the conditions.

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E£ 14216

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TrustScore 4.5 | 7,300+ reviews

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Best international shipping I've ever tried. Worth every penny!

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The product exactly matches the description. Very satisfied with my purchase.

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Manufacturer	TecMate
Brand	Tecmate
Model	TM-421
Item Weight	12.2 ounces
Product Dimensions	8.25 x 6.5 x 2.5 inches
Item model number	TM-421
Is Discontinued By Manufacturer	No
Exterior	Machined
Manufacturer Part Number	TM422
Voltage	12 Volts

OptiMATE 2, TM-421, 4-step 12V 0.8A sealed battery charger & maintainer

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