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Zhongneng Chengyu Power Co.,Ltd

Address: No.216 Changjiang Road, Huangdao Development District, Qingdao City, Shandong Province, China

E-mail: info@chengyupower.com

Tel: +86-532-86934246

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12v 260ah Agm Battery

12v 260ah Agm Battery

12v 260ah agm battery differ from flooded lead acid batteries in that the electrolyte is held in the glass mats, as opposed to freely flooding the plates. Very thin glass fiber are woven into a mat to increase surface area enough to hold sufficient electrolyte on the cells for their lifetime....

Product Details

12v 260ah agm battery differ from flooded lead acid batteries in that the electrolyte is held in the glass mats, as opposed to freely flooding the plates. Very thin glass fiber are woven into a mat to increase surface area enough to hold sufficient electrolyte on the cells for their lifetime. The fibers that compose the fine glass mat do not absorb nor are they affected by the acidic electrolyte. These mats are wrung out 2–5% after being soaked in acids, prior to manufacture completion and sealing.

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Specification of 12v 260ah agm battery


Cells Per Unit: 6
Voltage Per Unit: 12
Capacity:
260Ah@10hr-rate to 1.80V per cell @25℃

Dimension(LxWxH): 520 x 268 x 220mm 

Weight: Approx. 74.0Kg(Tolerance ± 1.5%)

Max. Discharge Current: 2600 A (5 sec)
Internal Resistance: Approx. 3.5 mΩ
Operating Temperature Range: Discharge: -20℃ ~60℃;

Charge: 0℃~50℃;

Storage: -20℃~60℃
Normal Operating Temperature Range: 25℃±5℃
Float charging Voltage: 13.6 to 13.8 VDC/unit Average at 25℃
Recommended Maximum Charging Current: 78A
Equalization and Cycle Service: 14.6 to 14.8 VDC/unit Average at 25℃
Self Discharge: CHENGYU Valve Regulated Lead Acid (VRLA) batteries can be stored for more than 6 months at 25℃. Self-discharge ratio less than 3% per month at 25℃. Please charge batteries before using.
Terminal: Terminal F14
Container Material: A.B.S. UL94-HB, UL94-V0 Optional.


Battery Terminal

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12v 260ah agm battery Discharge Chemistry

In the discharged state, both the positive and negative plates become lead(II) sulfate (PbSO4). The electrolyte loses much of its dissolved sulfuric acid and becomes primarily water. The discharge process is driven by the conduction of electrons from the negative plate back into the cell at the positive plate in the external circuit.

Negative plate reaction: Pb(s) + HSO4(aq) → PbSO4(s) + H+(aq) + 2e

Positive plate reaction: PbO2(s) + HSO4(aq) + 3H+(aq) + 2e → PbSO4(s) + 2H2O(l)

Combining these two reactions, one can determine the overall reaction:

Pb(s) + PbO2(s) + 2H+(aq) + 2HSO4(aq) → 2PbSO4(s) + 2H2O(l)

Charge Chemistry


This type of battery can be recharged. In the charged state, each cell contains negative plates of elemental lead (Pb) and positive plates of lead(IV) oxide (PbO2) in an electrolyte of approximately 4.2 M sulfuric acid (H2SO4). The charging process is driven by the forcible removal of electrons from the positive plate and the forcible introduction of them to the negative plate by the charging source.


Negative plate reaction: PbSO4(s) + H+(aq) + 2e– → Pb(s) + HSO4–(aq)


Positive plate reaction: PbSO4(s) + 2H2O(l) → PbO2(s) + HSO4–(aq) + 3H+(aq) + 2e–


Combining these two reactions, the overall reaction is the reverse of the discharge reaction:


2PbSO4(s) + 2H2O(l) → Pb(s) + PbO2(s) + 2H+(aq) + 2HSO4–(aq)


Notice how the charging reaction is the exact opposite of the discharge reaction.


Datasheet

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Battery inside

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