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Coslight GFM 300Ah dry battery

Minimum Order Quantity : 12 : Wholesalers call us for bulk price

Quick Overview

Capacity range:200 ~ 3000Ah
Temperature range:-25 ~ 60℃
Die-casting grid,
AGM technology
Terminal with brass insert, low internal resistance
Excellent Deep cycle performance
Mounting rack design with resistance against IX degree of seismic intensity
Cycle life:1200 cycles (80%DOD)
20 years design floating charge life (25℃)

Coslight GFM 300Ah dry battery

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The product is Flat plates 2V VRLA battery, with the advantages of extra-long floating charge/cycling life, no water addition required for maintenance, wide temperature range and etc. And the improved lead paste formula can improve battery discharge ability greatly. The product extremely applies to area with severe environment (e.g. high temperature, frequent power failure, volatile grid power and etc.) or energy storage system application with complicated electric environment. So it can provide longest service life battery guarantee to users.


Manufacturer's Link

Additional Information

Performance Parameter and technical details

Performance index

Recommended optimum value

Operating temperature range

Discharge-40 ~ 70
-25 ~ 60
Optimum temperature
23 ~ 27

Floating charge voltage

2.23V / 2V cell25

Max. charge current


Equalize charge voltage

2.35V / 2V cell25

Max. AC ripple

Floating charge voltage fluctuation≤0.5%RMS
or 1.5% of P-P value
AC ripple current ≤ C/20 A RMS

Storage life

Supplementary charge once every 6 months (25)


Bonding bar between batteries/battery rack/ take-off terminal




GFM (z) 600

Rated Voltage       


Rated Capacity   






Product code coslight300
Weight. 22KG
Color Gray
Country of Manufacture China
Manufacturer Coslight Russia

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