Installing Solar Batteries Safely

In depth

Mount on a level surface that carries the weight, and keep the manufacturer's ventilation clearance around the unit.

Use cable sized for the maximum current, properly crimped lugs, and a breaker or fuse on the positive lead. Loose terminals are the top cause of hot-spot problems.

Isolate loads and PV before working on the bank, use insulated tools, and never rest metal tools on top of a battery.

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Common mistakes to avoid

• Comparing amp-hours only and ignoring voltage, ending up with four times less energy than needed
• Discharging lead acid below 50%, which cuts life to less than half
• Picking a bank that does not match the inverter voltage, so charging fails or runs inefficiently
• Thin cable or a long run between bank and inverter, causing voltage drop and lost power
• Mixing new and old packs, or different capacities, on the same bus

Next step

Send your load list and required hours over WhatsApp, or use the on-site system calculator to size the battery bank and array.

Technical advice is free, and the recommendation is based on your real consumption, inverter voltage and installation location rather than on the largest battery in stock.

Frequently asked questions