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Tired to connect two 12V batteries in series? Here is a 24V Lithium battery for you!

Most of the Lithium battery BMS in the market do not support series,  when you connect two 12V lithium batteries in series, it will likely work and provide you 24V power supply, but it's not good for the battery in the long run, it could damage the battery cell or BMS itself.  Lithium battery BMS is not designed for series or even parallel. 

Rock-24-100AH 25.6V 100Ah LiFePO4 Lithium Battery

The Smart Drop-In Upgrade for Your 24V Power System

Tired of connecting two 12V lithium batteries in series? The Rock-24-100AH is your perfect solution—a powerful 25.6V 100Ah LiFePO4 battery designed specifically to replace dual 12V setups safely and efficiently. Unlike most lithium batteries on the market, which aren't designed to be connected in series, this unit provides native 24V output without stressing the battery cells or BMS.

Why Choose the Rock-24-100AH?

  • 🔋 True 24V Design – No more risky series connections. This battery is built for 24V systems right out of the box.

  • 🔁 Longer Life – Enjoy over 4000 cycles @80% DOD, which is 4x more than traditional lead-acid batteries.

  • ⚡ High Performance – Delivers up to 100A continuous and 200A peak discharge power.

  • 🔧 Drop-in Replacement – At just 20kg, this unit is lightweight and compact (483×195×245mm), making installation effortless.

  • 🧠 Advanced BMS Protection – Built-in Battery Management System ensures safety with protection against:

    • Over-voltage / under-voltage

    • Over-charge / over-discharge

    • Over-current

    • Over-temperature

    • Short-circuit events

  • 🌱 Eco-Friendly & Maintenance-Free – Say goodbye to acid leaks, corrosion, or constant servicing.

Technical Highlights:

  • Nominal Voltage: 25.6V

  • Capacity: 100Ah (2560Wh)

  • Efficiency: 98%

  • Charge Voltage: 28.4V–29.2V

  • Float Voltage: 27V

  • BMS Cut-off Voltage: 30V

  • Recommended Charge Current: 50A (Max 100A)

  • Discharge Cut-off Voltage: 17.6V

  • Short Circuit Protection: 300–800µs

  • Operating Temperature: -20°C to 60°C

Perfect For:

  • Solar energy systems

  • RVs and caravans

  • Off-grid applications

  • Electric vehicles and marine setups

  • Backup power systems

With the Rock-24-100AH, you’re not just buying a battery—you’re investing in long-term performance, safety, and peace of mind. Whether you're upgrading an old system or starting fresh, this battery brings unmatched convenience and reliability.

Our energy moves the world. Be part of the change.




Most of the Lithium battery BMS in the market do not support series,  when you connect two 12V lithium batteries in series, it will likely work and provide you 24V power supply, but it's not good for the battery in the long run, it could damage the battery cell or BMS itself.  Lithium battery BMS is not designed for series or even parallel. 

The Rock-24-100AH Lithium Battery is definitely the only drop-in upgrade for your existing old and heavy batteries. You've probably already familiar with the tedious process of replacing a lead acid battery once every two or three years. This is a thing of the past as an investment in Rock-24-100AH  lithium battery will give you a much more, clean and lightweight power source that can do 4 times as many cycles as your lead acid battery. A cycle is how battery life is measured. Each cycle one full discharge and then one full re-charge of a battery. A standard lead acid battery can cycle approx. 500 times. Rock  24-100AH  can cycle approx. 2000-4000 times. Our energy moves the world. You are part of the change!

Rock-24-100AH has developed these Phosphate (LiFePO4) batteries which are specifically designed as drop-in replacements for lead acid batteries and battery banks. LiFePO4 batteries represent an advancement in safety due to cell design with advanced battery management systems including under and over-voltage, over-discharge, over-current, over-temperature, and short-circuit protections which ensures safe and efficient operation. Rock-24-100AH LiFePO4 batteries Offers a significant longer cycle life than lead acid batteries helping to minimize replacement cost and reduce the total cost of ownership.

The main benefit of the Rock  24-100AH  LiFePO4 batteries is that it weighs considerably less than your existing lead acid batteries.

It weighs just 20 kg, yes you did read that correctly, just 20kg! You just simply remove your old heavy battery and put the new lightweight Rock-24-100AH in its place. It's as easy as that.

Size: LxWxH 483 x 195 x 245 mm

Weight: 20Kg

Package : 51 x 21 x 26 cm