Meet the next generation of reliable off-grid power: our Black Series 100Ah Lithium (LiFePO₄) Deep Cycle Battery. Designed for serious 4WDers, campers and tourers, this battery delivers exceptional performance, durability, and efficiency — ensuring your setup never runs out of 12V power when you need it most. Built to fit standard Group 24 (N70 - commonly referred to as 10in case) battery trays and boxes, it’s the perfect drop-in replacement for traditional AGM units.

Precision Engineering & Quality You Can Trust

Each Black Series battery is produced using state-of-the-art robotic assembly and verified through strict quality control, including serialised tracking and comprehensive pre-shipment cycle testing. Every unit’s test report is archived, backed by a 5-year* Australian warranty.

Certified for Safety & Performance

Our Black Series lithium batteries meet or exceed major global safety and compliance standards, including:

• UN 38.3 – Transport safety testing for lithium batteries
• UL 1642 – Quality and fire risk prevention
• IEC 62133-2:2017 – Portable battery safety under real-world use
• IEC 62619:2017 – Industrial battery safety and reliability
• CE – European compliance for safety, health and environmental protection

Manufacturing facilities are accredited to:

• ISO 9001 – Quality management
• ISO 14001 – Environmental management

True Capacity, Honest Ratings

We quote C5-rated capacity, not inflated nominal figures. This means our 100Ah battery delivers 20A for 5 hours — exactly what you expect from a true 100Ah battery. Many cheaper alternatives exaggerate specs using nominal ratings up to 20% higher than real-world performance. With Hardkorr, you get authentic capacity, honest data, and dependable power.

Important Note

This battery is not designed for under-bonnet installation.

When connecting multiple batteries in parallel, total discharge current scales with the number of batteries. For example, two batteries can safely deliver up to 200A combined.