The battery is the heart of any standalone solar system: it’s what stores the energy produced during the day to release it at night or during a power outage. Two technologies dominate the Cameroonian market: lithium (LiFePO₄) batteries and gel (VRLA) batteries. Here are the key differences to know before choosing your installation.

Lifespan

This is the most decisive criterion. A gel battery typically offers a few hundred charge/discharge cycles, while a LiFePO₄ lithium battery can reach 6,000 to 8,000 cycles, often meaning a lifespan of more than 10 years in normal residential use. Over the long run, the actual cost of using a lithium battery is generally more favorable, despite a higher upfront investment.

Depth of discharge (DoD)

Gel batteries generally support a discharge limited to around 50% of their capacity to preserve their lifespan. Lithium batteries, on the other hand, tolerate a deep discharge of up to 95% without significant degradation — meaning that at equal rated capacity, a lithium battery delivers more usable energy on a daily basis.

Weight and footprint

At equal capacity, a lithium battery is noticeably lighter and more compact than a gel battery, making transport and installation easier, and allowing for more modern designs (wall cabinets, stackable or wheeled mobile systems).

Maintenance and safety

Both technologies are largely maintenance-free. Modern lithium batteries, however, include a BMS (Battery Management System) that monitors voltage, temperature and current in real time, with automatic protection against overcharging, excessive discharge and overheating — an added layer of safety worth noting.

Upfront budget

At equal capacity, gel batteries are often cheaper to buy than lithium batteries. They can be an entry option for a tight budget, provided you accept a shorter lifespan and more frequent replacement.

Why JP Solaire chooses lithium

As the official Felicity Solar distributor, JP Solaire Sarl equips all its solar kits with lithium batteries guaranteed for over 10 years of lifespan, offering its customers — individuals and professionals alike — a reliable, durable investment, with fewer replacements and a better return on investment over time.

Still unsure which battery technology fits your project? Contact our team for personalized guidance.