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Hardkorr 40A DC-DC Charger Waterproof/Under Bonnet with MPPT Solar Regulator HKPDCDC40UB
Hardkorr 40A DC-DC Charger Waterproof/Under Bonnet with MPPT Solar Regulator HKPDCDC40UB
Hardkorr 40A DC-DC Charger Waterproof/Under Bonnet with MPPT Solar Regulator HKPDCDC40UB
Hardkorr 40A DC-DC Charger Waterproof/Under Bonnet with MPPT Solar Regulator HKPDCDC40UB
Hardkorr 40A DC-DC Charger Waterproof/Under Bonnet with MPPT Solar Regulator HKPDCDC40UB
Hardkorr 40A DC-DC Charger Waterproof/Under Bonnet with MPPT Solar Regulator HKPDCDC40UB
Hardkorr 40A DC-DC Charger Waterproof/Under Bonnet with MPPT Solar Regulator HKPDCDC40UB

Hardkorr 40A DC-DC Charger Waterproof/Under Bonnet with MPPT Solar Regulator HKPDCDC40UB

$325.00

(8 reviews)

Whether you’re touring the country with the family in tow or just trying to keep your drinks icy cold between job sites, our DC-DC charger is one of the easiest ways to keep your batteries topped up without being tethered to a mains power supply. The charger can be used on a range of batteries including both 12V SLA, AGM, gel, calcium, and LiFePO4 systems. The DC-DC works by converting the power from your alternator into a charge voltage that carefully, but quickly, suits the status, and chemistry of your auxiliary battery all without affecting your vehicle’s starter battery. Designed to work on most vehicles, it’s compatible with either traditional or fixed/smart alternators and will feed up to 40A into your batteries per hour. There’s a dedicated Anderson-style plug coming from the unit for the inbuilt Maximum Power Point Tracking (MPPT) solar regulator function. The charger will use the power coming from the solar input when it detects it as either the only available power source, or if the solar input exceeds the power being produced by the vehicle. Able to regulate up to 40A, it’s able to handle solar up to 15% more efficiently than traditional Pulse Width Modulation (PWM) regulators. With a high heat tolerance, the charger can be mounted in most places including under the bonnet. This is particularly useful in vehicles that have the space for an additional battery in the engine bay, like in Landcruisers and Patrols, helping to not only reduce voltage drop but also free up some space in the back of the vehicle. The charger comes with three pre-wired Anderson-style plugs to make installation simple. The black plug connects directly to the auxiliary battery, the traditional grey plug is the dedicated solar input, whilst the three-pin Anderson plug can be used to quickly connect to the vehicle.

Whether you’re touring the country with the family in tow or just trying to keep your drinks icy cold between job sites, our DC-DC charger is one of the easiest ways to keep your batteries topped up without being tethered to a mains power supply. The charger can be used on a range of batteries including both 12V SLA, AGM, gel, calcium, and LiFePO4 systems. The DC-DC works by converting the power from your alternator into a charge voltage that carefully, but quickly, suits the status, and chemistry of your auxiliary battery all without affecting your vehicle’s starter battery. Designed to work on most vehicles, it’s compatible with either traditional or fixed/smart alternators and will feed up to 40A into your batteries per hour. There’s a dedicated Anderson-style plug coming from the unit for the inbuilt Maximum Power Point Tracking (MPPT) solar regulator function. The charger will use the power coming from the solar input when it detects it as either the only available power source, or if the solar input exceeds the power being produced by the vehicle. Able to regulate up to 40A, it’s able to handle solar up to 15% more efficiently than traditional Pulse Width Modulation (PWM) regulators. With a high heat tolerance, the charger can be mounted in most places including under the bonnet. This is particularly useful in vehicles that have the space for an additional battery in the engine bay, like in Landcruisers and Patrols, helping to not only reduce voltage drop but also free up some space in the back of the vehicle. The charger comes with three pre-wired Anderson-style plugs to make installation simple. The black plug connects directly to the auxiliary battery, the traditional grey plug is the dedicated solar input, whilst the three-pin Anderson plug can be used to quickly connect to the vehicle.

Hardkorr 40A DC-DC Charger Waterproof/Under Bonnet with MPPT Solar Regulator HKPDCDC40UB

(8 reviews)

Whether you’re touring the country with the family in tow or just trying to keep your drinks icy cold between job sites, our DC-DC charger is one of the easiest ways to keep your batteries topped up without being tethered to a mains power supply. The charger can be used on a range of batteries including both 12V SLA, AGM, gel, calcium, and LiFePO4 systems. The DC-DC works by converting the power from your alternator into a charge voltage that carefully, but quickly, suits the status, and chemistry of your auxiliary battery all without affecting your vehicle’s starter battery. Designed to work on most vehicles, it’s compatible with either traditional or fixed/smart alternators and will feed up to 40A into your batteries per hour. There’s a dedicated Anderson-style plug coming from the unit for the inbuilt Maximum Power Point Tracking (MPPT) solar regulator function. The charger will use the power coming from the solar input when it detects it as either the only available power source, or if the solar input exceeds the power being produced by the vehicle. Able to regulate up to 40A, it’s able to handle solar up to 15% more efficiently than traditional Pulse Width Modulation (PWM) regulators. With a high heat tolerance, the charger can be mounted in most places including under the bonnet. This is particularly useful in vehicles that have the space for an additional battery in the engine bay, like in Landcruisers and Patrols, helping to not only reduce voltage drop but also free up some space in the back of the vehicle. The charger comes with three pre-wired Anderson-style plugs to make installation simple. The black plug connects directly to the auxiliary battery, the traditional grey plug is the dedicated solar input, whilst the three-pin Anderson plug can be used to quickly connect to the vehicle.

Whether you’re touring the country with the family in tow or just trying to keep your drinks icy cold between job sites, our DC-DC charger is one of the easiest ways to keep your batteries topped up without being tethered to a mains power supply. The charger can be used on a range of batteries including both 12V SLA, AGM, gel, calcium, and LiFePO4 systems. The DC-DC works by converting the power from your alternator into a charge voltage that carefully, but quickly, suits the status, and chemistry of your auxiliary battery all without affecting your vehicle’s starter battery. Designed to work on most vehicles, it’s compatible with either traditional or fixed/smart alternators and will feed up to 40A into your batteries per hour. There’s a dedicated Anderson-style plug coming from the unit for the inbuilt Maximum Power Point Tracking (MPPT) solar regulator function. The charger will use the power coming from the solar input when it detects it as either the only available power source, or if the solar input exceeds the power being produced by the vehicle. Able to regulate up to 40A, it’s able to handle solar up to 15% more efficiently than traditional Pulse Width Modulation (PWM) regulators. With a high heat tolerance, the charger can be mounted in most places including under the bonnet. This is particularly useful in vehicles that have the space for an additional battery in the engine bay, like in Landcruisers and Patrols, helping to not only reduce voltage drop but also free up some space in the back of the vehicle. The charger comes with three pre-wired Anderson-style plugs to make installation simple. The black plug connects directly to the auxiliary battery, the traditional grey plug is the dedicated solar input, whilst the three-pin Anderson plug can be used to quickly connect to the vehicle.

$325.00 - $622.89

in 24 offers

The lowest price for Hardkorr 40A DC-DC Charger Waterproof/Under Bonnet with MPPT Solar Regulator HKPDCDC40UB right now is $325.00 at Cash Converters, compared across 20 retailers.

The all-time low was $149.00 on 19 Mar 2026 — today's price is 118% above the lowest ever. It has been notably cheaper before — worth setting a price alert.

Prices last updated 15 Oct 2026.

Price comparison

Price data powered by pricesAPI.io

Last updated at 15/10/2026 05:16:24

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
https://www.google.com/s2/favicons?domain=amazon.com.au&sz=64Amazon.com.au

$469.00

HardKorr HKPDCDC40UB Under Bonnet 40A DC-DC Battery Charger with MPPT Solar Regulator

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

https://www.google.com/s2/favicons?domain=cashconverters.com.au&sz=64Cash Converters

$325.00

(Brand New) Hardkorr Under Bonnet 40A DC-DC Battery Charger Blue Battery Charger

Delivery $22.45

https://www.google.com/s2/favicons?domain=ebay.com.au&sz=64eBay.com.au

$369.73

Hardkorr 40A DC-DC Charger Waterproof/Under Bonnet

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

https://www.google.com/s2/favicons?domain=snowys.com.au&sz=64Snowys Outdoors

$374.00

Hardkorr 40A DC−DC Under Bonnet Battery Charger with MPPT Solar Regula

Free delivery between 19–22 Oct

https://www.google.com/s2/favicons?domain=bcf.com.au&sz=64BCF

$374.99

Hardkorr 40A Waterproof DC-DC Charger

Free delivery between 20–22 Oct

https://www.google.com/s2/favicons?domain=outbackequipment.com.au&sz=64Outback Equipment

$422.00

Hard Korr 40A Dc-Dc Charger Waterproof/Under Bonnet - Outback Equipment Australia - Electrical Gear & Accessories

Delivery between Mon – Wed $30.06

https://www.google.com/s2/favicons?domain=automotivesuperstore.com.au&sz=64Automotive Superstore

$444.90

Hardkorr 40A DC-DC Charger Waterproof/Under Bonnet with MPPT Solar Regulator HKPDCDC40UB

Delivery between 16–28 Oct $10.95

https://www.google.com/s2/favicons?domain=theboatwarehouse.com.au&sz=64Boat Warehouse

$445.56

Hardkorr Under Bonnet DC-DC Battery Charger with MPPT Solar Regulator by Boat Warehouse Australia - Boating, Marine, Electronics & Fishing Gear

Delivery between 21–26 Oct $10

https://www.google.com/s2/favicons?domain=a1roofracks.com.au&sz=64A1 Roof Racks

$446.00

HARDKORR 40A DC-DC UNDER BONNET CHARGER

Free delivery between 19–27 Oct

https://www.google.com/s2/favicons?domain=altapac.com&sz=64altapac.com

$446.00

HARDKORR 40A DC-DC UNDER BONNET CHARGER

Free delivery between 20–26 Oct

Price history

Price history

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.

Specification

Product TypeDC-DC Charger
Compatible Vehicle TypeCaravan, 4x4, Camper setups, Most vehicles, Vehicles that have the space for an additional battery in the engine bay (like in Landcruisers and Patrols)
Compatible Voltage12V (systems)
Compatible Battery TypeGel, AGM, Calcium, LiFePO4
Protection FeaturesHigh temperature resistance

Price comparison

Updated 5 days ago
Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
https://www.google.com/s2/favicons?domain=amazon.com.au&sz=64
Amazon.com.au

$469.00

HardKorr HKPDCDC40UB Under Bonnet 40A DC-DC Battery Charger with MPPT Solar Regulator

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

https://www.google.com/s2/favicons?domain=cashconverters.com.au&sz=64
Cash Converters

$325.00

(Brand New) Hardkorr Under Bonnet 40A DC-DC Battery Charger Blue Battery Charger

Delivery $22.45

https://www.google.com/s2/favicons?domain=ebay.com.au&sz=64
eBay.com.au

$369.73

Hardkorr 40A DC-DC Charger Waterproof/Under Bonnet

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

https://www.google.com/s2/favicons?domain=snowys.com.au&sz=64
Snowys Outdoors

$374.00

Hardkorr 40A DC−DC Under Bonnet Battery Charger with MPPT Solar Regula

Free delivery between 19–22 Oct

https://www.google.com/s2/favicons?domain=bcf.com.au&sz=64
BCF

$374.99

Hardkorr 40A Waterproof DC-DC Charger

Free delivery between 20–22 Oct

Price history

Price history

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.

Specification

Product TypeDC-DC Charger
Compatible Vehicle TypeCaravan, 4x4, Camper setups, Most vehicles, Vehicles that have the space for an additional battery in the engine bay (like in Landcruisers and Patrols)
Compatible Voltage12V (systems)
Compatible Battery TypeGel, AGM, Calcium, LiFePO4
Protection FeaturesHigh temperature resistance

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