Solar battery AGM Ultracell 12V 7Ah.

This new type of sealed battery uses "absorbed glass mat batteries" technology. This technology uses between the lead plates of the battery a thin sheet of boron-silicate fiber. This thin sheet is impregnated with electrolyte (70% water and 30% acid).

Advantages

AGM batteries have many advantages over conventional lead-acid batteries and gel batteries:

• They are maintenance free, waterproof.

• No gaseous releases, resistant to shocks .

• Low self-discharge 1 to 3% per month (unlike a normal acid-lead battery that discharges very quickly if you do not use it for a while).

• The life is increased so the purchase price is profitable over time, not counting the performance gain .

• As the electrolyte is soaked in the fiber it can not flow even in case of breakage of the battery case, thus the transport is much easier and safe. Having no liquid, the AGM are very little sensitive to the damaging effects of frost.

• For solar applications, AGMs are ideal: no maintenance (which makes it possible to place it in inaccessible places), no gas emissions (no danger of explosion and nuisance to the health of the users) use of the rates Conventional charging system which allows to use any standard charging system, minimum maintenance during wintering.

Life cycle versus discharge depth