Lithium-ion and Lead Acid batteries. The two primary contenders for energy storage solutions. Understanding the differences between each can help you make an informed decision about which one suits your needs best.

Lithium-ion and lead acid batteries

The primary differences between lithium-ion and lead acid batteries lies in their chemistry, energy density, efficiency, depth of charge, lifespan, and cost. Lithium-ion batteries offer higher energy density, efficiency, and longer lifespan compared to lead-acid batteries.


Lithium or Lithium-ion battery and how does it work?

A "lithium battery" is a general term that refers to any type of battery that uses lithium as a component. On the other hand, "lithium-ion battery" specifically refers to a type of rechargeable battery that utilises lithium ions moving between electrodes during charging and discharging.

Lithium-ion batteries rely on lithium ions moving between positive and negative electrodes to store and release energy. An ion is an atom or group of atoms that has either gained or lost one or more electrons, resulting in a positive or negative electric charge. This movement in a lithium-ion battery enables its high energy density, capacity, and efficiency.

More energy storage30 - 40%
Low energy storageDepth of chargeDischarged at lower depthHigher depth of dischargeEfficiencyHigh charge/discharge
Energy is retained during the charge/discharge processLess stored energy dischargedLifespan2000 cycles1500 cycles
Can be significantly shorter depending on chargeCostHigher initial cost
Long term value Low installation and upfront cost

When should you install a Lithium-ion battery vs a Lead Acid battery?

For a solar power battery with higher capacity, a longer lifespan, and better overall performance, a lithium-ion battery is the wiser investment. Lead Acid batteries might work better in a home with modest energy storage requirements. Lithium-ion batteries are the better option during the current unpredictable loadshedding stage changes.

Replacing a lead acid battery with lithium-ion

It is possible to replace a lead acid battery with a lithium-ion battery. It is also important to consider factors such as voltage compatibility, charging and discharging parameters, and  overall system compatibility to ensure a seamless transition. InPower’s solar power specialists are able to advise on the best lithium-ion battery replacement solutions.

The best lithium-ion battery

Lithium-ion batteries offer superior performance, efficiency, and longevity for your solar power system. The Hubble AM-2 stands out as a top-tier lithium-ion battery option and the preferred choice of InPower specialists.

With a capacity of 10 kWh and a discharge rate of 5kW, the Hubble AM-2 offers impressive performance. Its advanced Battery Management System also ensures safety, stability, and optimal performance. Its exceptional cycle life, efficiency, and capacity make it a dependable choice for homeowners looking for a premium, sustainable energy solution.