Trojan 31-GEL · 102Ah 12V · deep-cycle storage for photovoltaics

Quick answer: Need a battery for solar power systems? Consider the Trojan 31-GEL, rated 102Ah 12V. Terminal position is the detail people most often forget.

Measurements, ratings and codes

Practical advice for solar power systems

A remote weather station runs on its batteries day and night. Fit a fuse or breaker close to the bank on the main positive cable. After many years of daily cycling, every solar bank eventually fades.

Why choose the Trojan 31-GEL

Here is the Trojan 31-GEL, a battery for solar power systems. Identical batteries in a bank age at the same pace. Installers buy batteries online by exact model to match their designs.

Among batteries for solar power systems, 102Ah is at the smaller end.

Your questions answered

Before you order: a quick checklist

• ✓ Grab a tape measure: 329 × 171 × 245 mm is what this case needs.
• ✓ 102Ah sets how long the battery can power things with the engine off.
• ✓ Set your charger to gel before the first charge.

Explore more

Ordering online at baterias.online is the quick part once the checks are done. A tidy, clean tray gives the new battery a better start.

• Other batteries for solar power systems
• See every Trojan reference

About the technology: gel

Gel cells contain no free liquid that could spill. Gel batteries lose little charge on the shelf, which suits seasonal equipment. Do not equalise gel batteries.