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AGM / GEL battery

AGM and GEL batteries are sealed lead-acid (VRLA) batteries suitable for solar storage: they are maintenance-free and suitable for self-consumption, backup or off-grid applications.

AGM (Absorbed Glass Mat) batteries are characterised by low self-discharge and good robustness (shock/vibration). GEL batteries emphasise safety and discharge performance for regular use. To compare technologies and calculate real costs or to estimate your project, consult our tools

Battery sizing
Battery comparison
Battery profitability calculator

Choose in 30 seconds

  • Use: backup, isolated site, small systems → 12V AGM/GEL batteries are often suitable.
  • AGM or GEL: AGM = low self-discharge & robust; GEL = good discharge performance & safety.
  • Capacity: size in Ah according to your consumption and desired autonomy.
  • Compare: validate your choice with the comparison tool and profitability calculator.

Looking for more cycles and useful kWh in the long term? See also our

Lithium batteries (LiFePO4)

To power 230V devices from a battery, discover our

230V converters

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FAQ - AGM /amp; GEL Batteries

1. What is the difference between an AGM battery and a GEL battery? +
AGM (Absorbed Glass Mat) is often chosen for its low self-discharge and robustness (shocks/vibrations). GEL is valued for safety and better deep-discharge behavior for more regular use.
2. Are AGM/GEL batteries suitable for solar energy storage? +
Yes. They are sealed lead-acid VRLA batteries, generally maintenance-free, used for solar storage, backup and some off-grid applications (depending on sizing).
3. How do I choose voltage (12V) and capacity (Ah)? +
Start with the system voltage (often 12V in this family), then size the capacity in Ah based on your consumption and target autonomy. To compare technologies and evaluate “real cost”, use the battery comparison and the profitability calculator.
4. Can I power 230V devices with an AGM/GEL battery? +
Yes. You need a DC-to-AC inverter matched to your input voltage and required power. See: 230V inverters.
5. Where can I compare options and estimate storage profitability? +
Compare technologies using the battery comparison and estimate the economic interest with the profitability calculator.