This plug-and-play dual battery wiring kit makes it easy to turn your Hardkorr Heavy Duty Battery Box into a dual battery setup. It is designed to work in conjunction with our Voltage-Sensitive Relay, or can be adapted to work with a DC-DC charger as well. This kit contains everything you need to wire up your dual battery setup (other than the VSR/DC-DC charger), including 6 metres of high-quality 8AWG cable and a 50A maxifuse.
This plug-and-play dual battery wiring kit makes it easy to turn your Hardkorr Heavy Duty Battery Box into a dual battery setup. It is designed to work in conjunction with our Voltage-Sensitive Relay, or can be adapted to work with a DC-DC charger as well. This kit contains everything you need to wire up your dual battery setup (other than the VSR/DC-DC charger), including 6 metres of high-quality 8AWG cable and a 50A maxifuse.
in 7 offers
Korr Dual Battery Wiring Kit For Hardkorr Battery Box
This plug-and-play dual battery wiring kit makes it easy to turn your Hardkorr Heavy Duty Battery Box into a dual battery setup. It is designed to work in conjunction with our Voltage-Sensitive Relay, or can be adapted to work with a DC-DC charger as well. This kit contains everything you need to wire up your dual battery setup (other than the VSR/DC-DC charger), including 6 metres of high-quality 8AWG cable and a 50A maxifuse.
This plug-and-play dual battery wiring kit makes it easy to turn your Hardkorr Heavy Duty Battery Box into a dual battery setup. It is designed to work in conjunction with our Voltage-Sensitive Relay, or can be adapted to work with a DC-DC charger as well. This kit contains everything you need to wire up your dual battery setup (other than the VSR/DC-DC charger), including 6 metres of high-quality 8AWG cable and a 50A maxifuse.
The lowest price for Korr Dual Battery Wiring Kit For Hardkorr Battery Box right now is $64.50 at Outback Equipment, compared across 7 retailers.
The all-time low was $55.99 on 28 Nov 2025 — today's price is 15% above the lowest ever. That's a little above the best price we've seen.
Prices last updated 10 June 2026.
Last updated at 10/06/2026 05:51:42
Hard Korr Dual Battery Wiring Kit For Hard Korr Battery Box - Outback Equipment Australia - Electrical Gear & Accessories
Delivery between Fri – Tue $25.81
Dual Battery Wiring Kit
Free 60-day returns
Hardkorr Dual Battery Wiring Kit for Hardkorr Battery Box by Boat Warehouse Australia - Boating, Marine, Electronics & Fishing Gear
Delivery between 16–19 June $10
Dual Battery Wiring Kit (for Hardkorr Battery Box)
Delivery between 16–19 June $14.99
Dual Battery Wiring Kit (for Hardkorr Battery Box) - HK
Delivery $16.65
Korr Dual Battery Wiring Kit for Hardkorr Battery Box
Delivery between 15–18 June $8.99
HardKorr Dual Battery Wiring Kit for HardKorr Battery Box
Delivery between 15–18 June $9.99
originally posted on bcf.com.au
Premade and simple enough for a Dc-Dc application. Had enough length to get right to the back if needed.
originally posted on bcf.com.au
Kit was good quality, but one end has eye lugs which I would assume are to connect to main battery, and the other end has an Anderson plug. This is all good except the inline fuse is at the same end as the Anderson plug. I believe it should be at the end with the lugs.
originally posted on outbackequipment.com.au
Yeah it works well thank you
| Cable length | 6 metres |
| Cable gauge | 2 x 8AWG (2 x 10mm²) |
| Max current | 50A |
Hard Korr Dual Battery Wiring Kit For Hard Korr Battery Box - Outback Equipment Australia - Electrical Gear & Accessories
Delivery between Fri – Tue $25.81
Dual Battery Wiring Kit
Free 60-day returns
Hardkorr Dual Battery Wiring Kit for Hardkorr Battery Box by Boat Warehouse Australia - Boating, Marine, Electronics & Fishing Gear
Delivery between 16–19 June $10
Dual Battery Wiring Kit (for Hardkorr Battery Box)
Delivery between 16–19 June $14.99
Dual Battery Wiring Kit (for Hardkorr Battery Box) - HK
Delivery $16.65
Premade and simple enough for a Dc-Dc application. Had enough length to get right to the back if needed.
Kit was good quality, but one end has eye lugs which I would assume are to connect to main battery, and the other end has an Anderson plug. This is all good except the inline fuse is at the same end as the Anderson plug. I believe it should be at the end with the lugs.
Yeah it works well thank you
Very basic kit. Does the job however, there were a few things that were fundamentally poor. The fuse is located near the anderaon which is incorrect. It should be located closer the the terminal connection. Also, it would have been nice for both wires to be in a heat shrinked wrap to make feeding the wirea through conduit easier
Pretty happy with this harness. Fuse holder was on the Anderson plug end which had to be changed to the eyelet end of the cable, so it is near the main battery. Maybe it was built by someone with dyslexia. ???
Good product, easy to install and good to see from previous comments that they have moved the inline fuse to the battery end of the wiring.
It’s reasonable value. But mine was lightly cracking, not inspiring confidence. I.e. if you bend the wire you can faintly hear it crack. I opted to keep this for spare wire and go for another brand.
Complete and easy instructions/installation.Good quality.Good length of cable
Product is good but the put the Anderson plug on fuse end not battery terminal end. Easy fix, cut and re-terminate Anderson plug and terminals so fuse is close to battery of car. You always want fuse close to car battery should there be a fault it’s only has a short length to go, instead of 5m.
As another reviewer mentioned the fuse block is dubiously placed on the Anderson plug side of the cable. Really you're connecting 2 power sources over a fairly long distance, I would argue there should be a fuse on both ends. On my plug, the Anderson plug had the red wire in the negative terminal and the black wire in the positive. Yes, both these issues can be and were fixed with a cut and shut, however I bought a pre-made cable, I shouldn't have to chop it and reconnect it. I wish I had just made this cable myself and saved the money. I expected more from Hard Korr.
| Cable length | 6 metres |
| Cable gauge | 2 x 8AWG (2 x 10mm²) |
| Max current | 50A |
