1.Absorbent glass mat (AGM).The glass -fiber separator in SLA battery are made with advanced technology - this high porosity of the separators retains adequate electrolyte for the reaction with active material of the plates.
2.It's designed to operate for up to 10 years at 20°C on the basis of accelerated tests.
3. If depth of discharge is 30%, cycle service lifecan reach maximum at about 1000 times. GEL battery can reached 2000 times.
4. Its warranty is 3 years for proper use in telecommunication.
5. Battery case is making of fire proofs material therefore the case is very strong. It can avoid the fire.
6. Its using insert terminal. And it is not only beautiful but also easily distinguished and installed.
7. Maintenance free As it is valve-regulated sealed. Glass -mat is utilized acid is trapped inside .It is leak proof and refilling is no needed.
8. High power -to-weightratio - ESG SLA batteries can provide much power in comparison to its Weight
9. No Memory Effect. - Some batteries say nickel -cadmium batteries. It will become conditioned to provide less power after repetitious short usage /discharge.
10. Low self discharge-the self -discharge rate for ESG SLA. Battery is about 2-3% per month at room temperature compared with 20-30% for other common battery systems.
11. Longer service life-utilized thick and massive calcium grate ensure that HENDA SLA battery has a longer service life
12. High discharge rate -since the internal resistance is low, the battery can provide high rate of discharge
13.Wide operation temperature range- ESG SLA battery capacity is rated at 20 °C, and will operate from -20°Cto + 60°C when it is fully charged. Ambient temperature is 20°C, service life will be more efficient under 15°C to 25°C..
14. Easy of shipment- It is classified as non- dangerous goods and is acceptable to be shipped on passenger and cargo
 Structure&Characteristics 

In the discharge state of the lead-acid battery, the main component of the positive electrode is lead dioxide, and the main component of the negative electrode is lead; in the charged state, the main component of the positive and negative electrodes is lead sulfate.
1. Positive electrode plates
Positve plates are made of lead -calcium alloy with special chemical fromula
2. Negative Electode plates
Negative plates are made of lead - ehemical fromula
3. separator
The glass - fibre separator in HENDA SLA battery are made with advanced technology -this high porosity of the separators retains adequate electrolyte for reaction with active matterial of the plates .
4.safe valve
The valve system which operaters from 1 psi to 6psi (0.07-0.43kg/cm3) is designed to relaease excess gas and keep the internal pressure within the optmum range of safety .it protects the negative plates from contamination from oxygen in the air valve are 100%visually inspected during battery production
If the internal pressure is increased to an abnormal level during overcharge ,the safety valve ill be opened to release gas . it thus eliminates the danger of repture .once it has opened m it automatically closed in preparetion for future excessive increase in pressure.
5. Terminal
Depending on the battery model in MICRO series ,the terminals may b e fasten rype , bolt -and nut type , pressue contact type ,cable -and connector type or other special types

Specification

ESG High Quality Sealed Lead Acid Battery 12V7AH 12AH 20AH Rechargeable Sealed Lead Acid Solar Battery

packing and shipment

ESG solar storage power system deep cycle gel battery 12v 7ah 8ah 9ah 10ah solar lead acid battery

ESG New Energy Technology Co. Ltd Committed to engage in off-grid system, We are producing batteries, pure sine wave inverter,solar controller , wind and solar power generation system production, We have a production line and scientific quality management system. Development and sales of high-tech enterprises.

Our factory has 32years history, we have 3 brand in China. ESG was established in 2013, a newest brand are specialized in solve green energy project.