How to choose the right gel battery for solar energy storage
Solar systems, caravans and mobile workplaces need a cyclic load profile — charging by day, discharging by night — and deep-cycle gel is the technology built for exactly that.
Solar energy systems, caravans and off-grid mobile workplaces have a cyclic storage profile: charged by daily solar generation and discharged as needed. That profile demands a different kind of durability than a standard battery offers.
Solar gel batteries are positioned for this cyclic storage need and are built on deep-cycle gel technology at their core. This guide summarizes what to ask before sizing one correctly.
Cyclic storage is different from continuous-load storage
In solar systems, the battery is partially or fully discharged each day and recharged the next. This repeated cycling requires the battery to be built for repeated deep discharge-charge cycles — which is exactly where the solar-gel family and the deep-cycle gel technology behind it stand out.
Solar gel batteries are positioned for applications needing cyclic storage, such as solar systems, caravans and mobile workplaces.
The deep-cycle gel technology behind it
The deep-cycle gel technology the solar-gel family is built on is developed to withstand repeated deep cycling; the same technology is also used in other cyclic applications such as cleaning machines, wheelchairs and access platforms. In a solar/caravan/mobile-workplace scenario, that same durability is used to keep storage stable against the day-to-day fluctuation of solar generation.
Questions to clarify before sizing
A fixed capacity or lifespan figure cannot be given upfront, since it depends on depth of discharge, ambient temperature and charge-controller settings. Sharing the following with the technical team is what enables correct sizing.
- The system's daily energy consumption profile and critical load list
- Installed solar panel power and charge-controller type
- Expected number of consecutive low-sun days (backup duration)
- The installation environment's temperature range (stationary site, caravan, mobile field)
Storage and installation care
A cool, dry storage area, terminal protection against short-circuit, and confirming the charge-controller profile matches gel technology are recommended before installation.
Frequently asked questions
- What applications suit solar gel batteries?
- Solar gel batteries are positioned for applications needing cyclic (daily charge-discharge) storage, such as solar systems, caravans and mobile workplaces.
- How many years can a solar gel battery be used?
- Service life varies with depth of discharge, ambient temperature and charge-controller settings; share your application conditions with the technical team for a specific estimate.
- Is a solar gel battery the same as a deep-cycle gel battery?
- The solar-gel family is built on deep-cycle gel technology and offers the same deep-cycling durability, applied to the solar systems, caravan and mobile-workplace scenario.
- What should I share to size the right capacity?
- Daily energy consumption profile, installed panel power, charge-controller type, expected backup duration and the installation environment's temperature range let the technical team recommend correct sizing.