20A 3-Stage 12V
AC Battery Charger

Designed to pair perfectly with your battery box, this 20A charger keeps your setup powered up and ready for your next adventure.

Hardkorr 20A 3-Stage 12V AC Battery Charger in blue and gray, designed for efficient battery charging with sturdy mounting brackets, ideal for camping power setups.
20A 3-Stage 12V AC Battery Charger in blue and gray with labeled connection terminals, designed as the ideal companion for your battery box, supporting efficient charging for camping and outdoor adventures.
20A 3-Stage 12V AC Battery Charger in blue and black with multiple charging mode indicators, power switch, and AC input designed for reliable battery maintenance in outdoor and camping setups.
Side view of a blue and gray 20A 3-Stage 12V AC Battery Charger designed for reliable battery charging and power management in outdoor and camping setups.
Blue 20A 3-Stage 12V AC Battery Charger with cooling fan and black and red battery terminals, designed as the ideal companion for your battery box, perfect for camping power setups.
Blue 20A 3-Stage 12V AC Battery Charger front view showing power switch and AC input port, designed as the ideal companion for battery boxes in camping and outdoor setups.
Set of connection cables including power cord and battery clamps for the 20A 3-Stage 12V AC Battery Charger, designed for reliable camping power solutions.
Hardkorr 20A 3-Stage 12V AC Battery Charger in blue and gray, designed for efficient battery charging with sturdy mounting brackets, ideal for camping power setups.
20A 3-Stage 12V AC Battery Charger in blue and gray with labeled connection terminals, designed as the ideal companion for your battery box, supporting efficient charging for camping and outdoor adventures.
20A 3-Stage 12V AC Battery Charger in blue and black with multiple charging mode indicators, power switch, and AC input designed for reliable battery maintenance in outdoor and camping setups.
Side view of a blue and gray 20A 3-Stage 12V AC Battery Charger designed for reliable battery charging and power management in outdoor and camping setups.
Blue 20A 3-Stage 12V AC Battery Charger with cooling fan and black and red battery terminals, designed as the ideal companion for your battery box, perfect for camping power setups.
Blue 20A 3-Stage 12V AC Battery Charger front view showing power switch and AC input port, designed as the ideal companion for battery boxes in camping and outdoor setups.
Set of connection cables including power cord and battery clamps for the 20A 3-Stage 12V AC Battery Charger, designed for reliable camping power solutions.

20A 3-Stage 12V AC Battery Charger

HKPACDC20A

$150.00
/
Tax included. Shipping calculated at checkout.

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THE IDEAL COMPANION FOR YOUR BATTERY BOX

The perfect companion for your battery box, this 20A 3-stage charger delivers reliable and efficient charging to keep your power system ready for your next adventure. Designed to help maintain battery health while providing dependable performance, it’s ideal for keeping your battery topped up between trips or recharging after a weekend away. Compact, easy to use, and built for everyday convenience, this charger makes powering up your setup simple and stress-free.

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Charge your batteries from home

Our 20A AC Chargers make charging your batteries from mains/AC power easy. Built for campers and 4x4ers, this 20A AC battery charger delivers reliable charging for 12V deep cycle batteries. Simple to operate, it supports AGM, Gel, Wet, Calcium and Lithium chemistries, making it ideal for camping, workshop, garage and everyday power setups.

Features intelligent 3-stage charging technology that optimizes battery health and extends lifespan. The automatic float mode prevents overcharging, while the compact design fits easily into caravans, vehicles, and storage spaces. Suitable for both leisure and professional use, this charger is a reliable addition to any off-grid or backup power system.

Rated input 180–260V AC
Rated output (Bulk) 20A, 14.4V ± 0.15V (LiFePO₄)
Rated output (Float) 13.6V ± 0.15V (LiFePO₄)
Compatibility LiFePOâ‚„, AGM, Calcium, Std, Gel
Efficiency ~85% (@ 230V)
Protections Reverse polarity, over-voltage, over-temp., short-circuit
Dimensions (mm) 226 (L) x 182 (W) x 87mm (H)
1x 20A battery charger
2x 6mm²  x 50cm M8 ring terminal to 50A Anderson-style adaptor cable
1x 80cm 10A C13 240V AC power cable.
Hardkorr Warranty

This product has a 2 year replacement warranty. This means that if the product is found to be faulty, we will replace the whole product. See our warranty page for details.

Nation-wide support

With our network of over 1000 stockists around the country, we’ll make sure there’s always someone nearby ready to help.

Top technical advice

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L
Lloyd G.
Purchased this as a backup charger for when power

Purchased this as a backup charger for when power is available. I have it hard mounted in my car to top up my 500ah Lithium setup. It does the job very well and I am more than happy with it.

Hi there! We're thrilled to hear that the charger is working perfectly for your setup. Thanks for sharing your experience and for choosing HARDKORR!

P
Pringle
Solid charger, Super simple to use.

Purchased to service my standard lead acid in my boat and a future deep cycle that will be going in.
With the Anderson plug system super easy to swap between with no hassle of clamps.

I do think the user manual could use some more meat to help a new user or someone that hasn't delt with batterys before.

Hi Pringle, thank you for your great review! We're glad the charger is working well for you and appreciate your feedback on the manual. We'll consider adding more details to help new users.

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