Gel batteries are a type of sealed battery / VRLA. In a gel battery, the electrolyte is gelled by adding silicate.
View the inside of a gel battery
| Advantages | Disadvantages |
|---|---|
| Maintains the homogeneity of the electrolyte perfectly | Limited peak current |
| Low self-discharge (1-3% per month) | Slow charging and discharging. (charge current limited to 5-10% of capacity) |
| Cannot withstand high temperatures (loss of electrolyte in the form of gas - permanent effect) | |
| Longer life span/shelf life | Sensitive to overload (loss of electrolyte in the form of gas) |
| High cost |
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