Australian-made LiFePO4 lithium batteries for caravans, 4x4s, off-grid and marine power, supplied and installed by Rock Electrical in Hobart.
Licence
1491885
You receive
Compliance certificate
Quote
On site, obligation-free
Rock Electrical is a Custom Lithium reseller in Hobart, supplying and installing premium Australian-made lithium batteries for caravans, 4x4s, off-grid systems and vessels.
Custom Lithium designs, engineers and manufactures its LiFePO4 batteries at its own facility in Brendale, Queensland. The batteries are Certified Australian Made and backed by a 7-year warranty.
A quality battery still needs the right charging, cabling and protection around it. We match the battery to how you use power, then wire, protect and commission the full system, so you deal with one local team from quote to handover. If you are planning a battery upgrade on a vessel, talk to us about how a Custom Lithium battery fits your marine electrical system.
Email a photo of the job to info@rockelectrical.com.au and we will tell you plainly what it needs.
Any one of these is worth a phone call to our team.
If your current battery cannot keep the fridge and lights running off-grid, a higher capacity lithium battery is worth pricing.
Ultra Slim batteries suit caravans, behind-the-seat installs and tight spaces, and they can be mounted in any orientation.
Air conditioning and coffee machines need a battery with a high current BMS, paired with the right inverter.
Caravan and RV lithium batteries come in 400Ah, 550Ah and 620Ah, with a compliance kit available for the RV400 and RV620.
Vehicle-specific kits offer a no-drill install for popular 4x4s in 100Ah, 150Ah and 200Ah.
Your DC-DC charger, solar regulator and 240V charger must support lithium. We check them before the swap so the new battery charges correctly.
"Rock Electrical has been our sole electrical contractor for the ongoing renovation of our house, and have done an extensive re wiring and board upgrade, outdoor power points, lighting and more."
"Rock Electrical has been our sole electrical contractor for the ongoing renovation of our house, and have done an extensive re wiring and board upgrade, outdoor power points, lighting and more."
Thomas
Google Reviews
"The Rock Electrical team arrived on time, completed the jobs in a timely manner and left the work site clean and tidy."
"The Rock Electrical team arrived on time, completed the jobs in a timely manner and left the work site clean and tidy."
Ian
Google Review
"I’ve dealt with numerous Tradies over the years and the team at Rock Electrical are certainly by far the best I’ve used!"
"I’ve dealt with numerous Tradies over the years and the team at Rock Electrical are certainly by far the best I’ve used!"
Chris
Google Review
The main areas this service covers, and what each one means for your property.
Custom Lithium builds each range around how and where the battery will be used. We help you choose the right range and capacity for your setup:
Not sure which range suits you? Tell us what you want to run and where the battery needs to fit, and we will recommend the right battery.
Lithium battery installations need to meet current Australian and New Zealand compliance standards. Custom Lithium offers a full compliance kit to suit its RV400 and RV620 batteries.
The kit is built from 1.2mm powder-coated steel, is silicone sealed and has external venting. We can supply and fit the compliance kit with your battery, so the installation is right from the start.
Supplying the battery is only half the job. A lithium battery performs best when the cabling, protection and charging equipment around it are designed for the load, and our electrical experience covers the full system:
Every job is tested and issued with a Certificate of Electrical Compliance. Licence No. 1491885.
Rock Electrical is a local Hobart electrician business with hands-on experience in off-grid, marine and custom battery work. You get a Certified Australian Made battery backed by Custom Lithium's 7-year warranty, installed by electricians who look after the whole system around it.
You deal with one team for supply and installation, with clear communication from the first conversation through to commissioning. Get a quote or call Josh on 0439 765 533 to talk through the right battery for your setup.
Licensed contractor
Tasmanian electrical contractor, Licence No. 1491885
Certified work
Certificate of Electrical Compliance issued on every job
Obligation-free quotes
Scope confirmed in writing before any work starts
24/7 emergency line
After hours, weekends and public holidays across greater Hobart
Call us or send the enquiry form with a few photos. We will let you know whether it is a scheduled job or an emergency.
We inspect the site and the load, then provide an obligation-free quote with the scope in writing.
A licensed Rock Electrical electrician attends on the confirmed day and leaves the site clean and tidy.
Every job is tested and issued with a Certificate of Electrical Compliance. Licence No. 1491885.
Rock Electrical is available after hours, on weekends and over public holidays. If something is sparking, tripping or smoking, turn off the power at the main switch and call us.
Practical advice on electrical services, energy efficiency and running costs for Tasmanian homes, businesses and boats.
Learn more about the new Cheaper Home Batteries Program, launching July 1, 2025, including the 30% subsidy on battery installation costs for Tasmanian households.
Tasmanian homeowners are increasingly adding batteries to their solar systems, and in this post, we explore why - as well the benefits and incentives of this upgrade.
Centred on Hobart, covering Glenorchy and the northern suburbs, the eastern shore, Kingston and the Channel, New Norfolk and the Derwent Valley, and Sorell.
Join the many satisfied Hobart residents and businesses who trust Rock Electrical for their electrical needs. Tell us about the job and our local team will get back to you with a clear, obligation-free quote.
Or call 0439 765 533
