Sealed AGM batteries use the same chemistry as submerged lead-acid batteries, but instead of a pool of acid, the electrolyte consists of a fiberglass mat soaked in sulfuric acid. The housing is completely sealed except for a pressure relief valve. This allows for compact, maintenance-free batteries - ideal for military applications originally developed.

    The advantage of this battery is that

1. Lighter and smaller than submerged lead-acid batteries of the same capacity
2. No need for regular maintenance or supplementation
3. Low internal resistance enables very fast charging while reducing energy loss
4. The sealed case allows the battery to be used, stored, or transported in any orientation
5. No hydrogen emission in normal use, reducing ventilation requirements
6. Slow self-discharge speed, suitable for long-term storage
7. Do not need to be transported as dangerous goods

    Its disadvantages are:

1. More expensive than submerged lead-acid batteries
2. Charging too fast or overcharging may damage the battery
3. Relatively difficult to diagnose or repair
4. Very heavy and low energy density

    Changshu Wanlong Power Technology R&D Co., Ltd. is a Sealed Ups Battery manufacturer, specializing in the production of 12v Deep Cycle Gel Battery, Sealed Gel Battery, and other batteries, welcome to inquire