THIS PRODUCT HAS BEEN DISCONTINUED
This product has now been discontinued and is no longer available for sale. We have kept this page active for the benefit of those who have purchased this product in the past.
Next-generation portable power.
Our 100AH deep-cycle lithium batteries consist of four high quality aluminium-encased prismatic cells connected in series, each with a nominal voltage of 3.2v. Prismatic cells are lightweight, provide excellent vibration resistance and have far fewer possible points of failure than other types of battery cells.
These batteries use an advanced battery management system (BMS) to ensure an even energy balance between cells and allow the batteries to be connected in parallel or series (up to 4). The BMS contains an intelligent protection circuit module which protects against overcharge, over-discharge, short-circuit and over-temperature.
Our battery cells are protected by custom-molded EVA rubber cushioning. This cushioning offers protection against knocks and drops, and ensures better stability and longevity when the batteries are used in high-shock and high-vibration environments such as marine and vehicle applications.
Why upgrade to lithium?
- Long cycle life: lasts up to 10x longer than Sealed Lead Acid (SLA) batteries
- More usable capacity: safely use up to 70% of usable capacity and 99% in an emergency (vs 50%/70% for SLA)
- Light weight: About half the weight of an equivalent SLA battery
- Environmentally friendly: Non-toxic, contains no acid, can be installed in any direction
The Hardkorr difference
Don’t be fooled – deep cycle batteries might look similar on the outside, but the key differences between low-quality and high-quality batteries can be found on the inside.
Our batteries are constructed from superior grade components, including the cells, battery management system and even the wiring. Not only does this mean your battery will last longer and provide much greater reliability, but it also provides two other significant advantages.
First, our maximum discharge rate is 100Ah for 40 minutes or 150Ah for 2 minutes. This is significantly higher than most others, and is especially important if you plan to use this battery in conjunction with an inverter.
Second, you can connect up to four of these batteries in parallel or up to four in series. This means you can create up to a 400Ah 12V setup, or a 100Ah 48V setup!
Our lithium batteries have been certified as meeting all required and optional international standards for performance and safety, including:
- UN 38.3: Safety testing of lithium metal / lithium ion batteries in transport
- UL 1642: Performance/quality testing to guard against risk of fire or explosion
- IEC 62133-2:2017: Safety testing of portable lithium batteries under intended use and reasonably foreseeable misuse (including vibration test)
- IEC 62619:2017: Safety testing of lithium batteries for industrial use
- CE: The batteries meet EU safety, health and environmental protection requirements
- ISO 9001: Ensures quality management systems have been implemented
- ISO 14001: Ensures environmental management systems have been implemented
Handy remote reset switch
The Battery Management System (BMS) inside all lithium batteries contains a protection circuit which trips if the voltage drops below a certain setpoint. In the case of Hardkorr batteries, it is set at 10.0V. This circuit prevents damage to the battery by putting it into a ‘sleep’ mode until it is reset.
In the past, resetting the battery after the over-discharge protection was activated was not easy. Whilst some battery chargers do contain a “wake-up” function, most people had to resort to applying a constant voltage above 12V across the terminals using jumper leads or home-made wires. This was fraught with danger; damage to appliances or the battery were not uncommon.
Our batteries provide an easy solution to this problem; simply connect our included remote reset switch to the socket on the top face of the battery and hold down the button for 5 seconds, and the over-discharge circuit will reset itself. The button can also be flush-mounted into your 12v setup if desired.
LCD digital display
All of our deep cycle lithium batteries now come with a handy LCD digital display on the top of the unit.
This display allows you to easily view your battery’s voltage at any point in time. The screen is backlit, so you can read its output regardless of whether it is day or night.
More usable power, longer life
When comparing batteries it is vitally important to understand the difference between nominal and C20 capacity. To reduce confusion and help to standardise the measurement of battery capacity, most reputable battery manufacturers will quote the capacity of their battery in amp-hours at C20 (also written as C/20), which means the number of amps the battery can deliver if discharged at a constant rate over a period of 20 hours. Using this standard, a fully-charged battery with a capacity of 100Ah could deliver 5A of current per hour for a period of 20 hours before becoming fully discharged (5A x 20h).
Some disreputable manufacturers, however, will advertise the nominal capacity of their batteries and bury the C20 rating in the fine print. Nominal capacity has no practical application and can be up to 20% higher than the C20 rating, so a battery that is advertised as a 120Ah battery might only be able to deliver 105Ah or even less.
We value our good reputation, and will always quote the C20 rating as the battery’s capacity. This means you can be confident that the power we say our batteries can deliver is not inflated to mislead, create confusion or invite unfair comparisons.
Want to know more?
We’ve written a comprehensive guide to deep cycle batteries on our blog, which contains everything you need to know about this highly technical subject. Click here to check it out:
The Hardkorr guarantee
All Hardkorr products are manufactured using the highest quality materials. We are confident that they are the most durable in the market and will give you many years of reliable service. We stand behind this product with a comprehensive 3-year Australian warranty and a 30-day money back guarantee.
|Max series/parallel config||4S/4P|
|Normal charge voltage||14.6V|
|Discharge cut-off voltage||10.0V|
|Self-discharge||<3% per month|
|Initial impedance||Less than 20mΩ|
|Max charge current||50A|
|Max discharge current (constant)||50A (0.5C)|
|Max discharge current (40 min)||100A*|
|Max discharge current (2 min)||150A*|
|Pulse current (3 sec)||200A*|
|Dimensions||324mm (l) x 173mm (w) x 216mm (h)|
|Certifications||UN/DOT 38.3, CE, RoHS|
* Note on discharge current: if you connect multiple batteries in parallel, the maximum discharge current is multiplied by the number of batteries in the array. For example, if you connect two of these batteries in parallel you can discharge at 200A for 40 minutes.
Will & Jenny Colquhoun (verified owner) –
Ended up receiving a135ah LiFePO4 Bluetooth compatible battery after waiting about 2 months to receive the 100ah lithium battery. Thankyou Hardkorr for the upgrade much appreciated. The 135ah battery sat around for about 4 weeks due to work commitments. I then fitted it into our Camper (after removing the extremely heavy 120ah AGM battery).
We recently went on a 10 day mini tour down to WA’s Southwest and gave the lithium battery a good solid work out often on 40C days. The worst it ever did overnight was down to 65% (the old AGM would have been at least 40%) running through a Redarc Battery Management 30 system. More often than not the lithium battery reading over night was above 75%. Very happy with the performance. Running, 75L Evacool fridge/freezer, various LED lights, 1000w inverter and one sirocco fan.
I didn’t think the Bluetooth app would have been of much use to me but I did use it and when compared to the Redarc Management 30 there was only a couple of percent difference, so pretty accurate. Lastly as promised it would charge up rapidly, at least twice as fast as the old AGM.
Worth the money ? Yes I think so.
Roger Kubal –
Well it’s been 7 months now with 3×100 hard korr lithium’s with a Redarc m30 and 700watts of solar we are on the road full time and the batteries are still 80% in the morning we run 230ltr compressor fridge a 25ltr compressor freezer plus tv and lights. They are back at 100% by 11 o’clock can’t fault them at the moment way better than expected.
imsharp (verified owner) –
I got this lithium battery to fit their Hardkorr battery box, charged via one of their 170w solar panels.
The fan and LED lights that I have been running of it, hardly used any power, over a couple of days of use.
Probably because solar panel kept it topped up easily.
Lithium is the future, reduced weight & able to use more amp hours.
Edgar Moreira (verified owner) –
Still early days but i am impressed so far. Been so much lighter than a AGM batterie is pretty damn good.
I ran me dometic 35ltr fidge on -2 n empty for 5 days n 10hrs b4 it ran out. Thats pretty good in my eyes.
George (verified owner) –
I have fitted one of these in my 4WD (in the back) and it is connected to a Redarc BMS30 system. I will typically run a car fridge on a weekend trip and run the fridge as a freezer on a bigger trip where I will also be recharging batteries (including with a 350W power inverter.
It is still early days, but so far the battery has performed well. Running the car fridge as a freezer overnight would draw down between 25 and 35% of the battery capacity. With the Redarc system I have, the battery recharges very quickly (faster than my old duel battery system with an AGM battery of similar capacity). So, with the usable capacity and fast recharge, I don’t have to worry as much as I used to with my old system about running the battery flat.
It is too early to say how long the battery will last, but it appears to be well constructed so I am hopeful that it will be OK on rough roads. I did have to put a thin strip of rubber between the battery clamp and battery to keep the clamp clear of the small LCD display that is on the top panel of the battery. I also opted to buy some battery posts so that the battery electrical connections are via a standard battery clamp (rather than bolt eye terminals to the battery with the supplied M8 bolts.
Overall, I think this is a good usable capacity for the way I use an auxiliary battery, especially for the size and weight of the battery – the low weight of lithium batteries seems incredible if you are used to lead acid or AGM batteries.
Wes (verified owner) –
A mate and I bought a 100amp lithium battery each to run our wagon fridge and camping accessories and to say we’re impressed is an understatement.
The battery performs well against the claimed rating which after research was one of my biggest concerns when choosing which lithium to buy as the common comments made with lithiums is theyre claimed Ah and actual Ah are often quite different.
We now have no drama running our car fridges for nearly a week with no driving or solar input and charge recovery is awesome.
Sam from Korr was more then helpful with all the questions and saw to it we were happy with our purchases with 0 sales push i might add
I’d highly recommend these batteries to anyone and certainly will be purchasing more for future projects.
Jason C –
I have 2x of these 100Ah batteries in my Car. they run my 2000w inverter with ease. I can highly recommend them as the represent good value to.
Craig Boyd. Renegade Camping Trailers –
These are my first lithium batteries and I love them, heaps of power! and they weigh bugger all. Also change them with my 200w Heay Duty Portable Solar Panel from Korr Lighting it works a treat good gear. It means I can camp for weeks at a time. ?