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Discover our complete range of premium lightweight lithium batteries, compatible smart chargers, portable jump packs, and advanced solar regulators engineered for high-performance NZ power systems.

Lithium Batteries NZ – Long-Life, Lightweight Deep Cycle Power

Welcome to the next generation of independent power. This complete category brings together premium Lithium Iron Phosphate (LiFePO4) deep-cycle batteries alongside the specialized equipment needed to run them at peak performance. Explore our hand-picked selection of high-capacity lithium battery banks, smart lithium-compatible chargers, portable heavy-duty jump packs, and advanced solar regulators. Built for maximum weight reduction, rapid charging, and long-lasting durability, this is your complete destination for building a bulletproof off-grid power setup for your RV, marine vessel, or commercial vehicle in NZ.

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Our Lithium Battery Product Range

The products in this page are displayed in a structured order to help you quickly find the right solution: 

  1. Magic Lithium Hybrid Starter Battery
    Our top-tier hybrid lithium starter battery, holding the No.1 position in this category. 

  1. Lithium Stored Energy Batteries
    High-capacity LiFePO4 batteries designed for deep cycle applications including RVs, marine, solar, and off-grid systems. 

  1. Lithium Starting Batteries
    Lightweight, high-performance starting batteries for automotive, marine, and performance applications.

  1. Lithium-Compatible Chargers & Solar Controllers
    Chargers and regulators specifically designed for safe lithium charging and optimal battery lifespan.

  1. Lithium Full D.I.Y. Kits by Projecta
    Complete lithium system kits, available with or without batteries, for streamlined off-grid and RV installations.

  1. Lithium Generators
    Portable lithium power solutions ideal for camping, job sites, and emergency backup.

  1. Lithium Jump Starters
    Compact, powerful jump starters designed for reliability and convenience.

Learn more about lithium technology and how it compares to AGM and other battery types. 

Why Choose Lithium Batteries?

Lithium batteries provide significant advantages over traditional battery technologies: 

  • 3–5× longer cycle life
  • Up to 50% lighter weight
  • Faster charging
  • Deeper usable capacity (up to 80–100% discharge)
  • More stable voltage output

For off-grid travel, marine applications, and solar energy storage, lithium batteries offer greater efficiency and long-term value. 

Best Uses for Lithium Batteries

Lithium batteries are widely used across: 

  • Motorhomes & campervans (see our motorhome battery range)
  • Marine & boat applications
  • Solar energy storage systems
  • Mobility and industrial equipment
  • Portable power setups

Their lightweight design and long lifespan make them especially popular for RV and marine upgrades. 

Why Buy Lithium Batteries from Battery Cell?

  • Trusted NZ battery specialists 
  • Premium LiFePO4 battery options 
  • Fast nationwide delivery 
  • Expert support for RV, marine & solar setups 
  • Compatible accessories including battery monitors 

We help you select the right lithium battery for your application, ensuring safe installation and long-term performance. 

Lithium Battery FAQs

How long do lithium deep cycle batteries last?

Lithium batteries typically last 2,000–5,000 cycles, often 8–12 years depending on usage and charging conditions.

What is a LiFePO4 battery?

LiFePO4 (Lithium Iron Phosphate) is a stable and safe lithium chemistry commonly used in deep cycle applications due to its long lifespan and thermal stability.

Can I replace my AGM battery with lithium?

Yes. In many cases lithium can replace AGM, but you may need a compatible charger or charging system. Check system compatibility before upgrading.

Do lithium batteries need a special charger?

Lithium batteries require lithium chargers or charge controllers designed for lithium profiles to ensure correct voltage and safe operation. 

What size lithium battery do I need?

Battery size depends on your energy usage. RV and marine setups commonly require 100–200Ah or more depending on appliances and off-grid duration. 

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