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CSB Battery 6v 4.5 AH Deep Cycle Sealed Lead Acid Battery

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Product InformationStore Part Number: GP645-F1


Replaces: Ps640f1, ub640, UB645, UB645K

The CSB GP645 is a general-purpose battery designed to last up to 5 years in standby service and ships with F1 style connectors. As with all CSB batteries the GP 645 is a rechargeable sealed lead acid battery, and is highly efficient battery with a leak proof maintenance free design.

NON-SPILLABLE by DOT (Department of Transportation), ICAO (International Civil Airline Organization) and IATA (International Airline Transportation Association) definitions.


  • Maintenance-Free Sealed Lead Acid Battery
  • Absorbent Glass Mat (AGM) technology for efficient gas recombination of up to 99% (often referenced as Gel Cell)
  • Leak Proof/Spill Proof
  • F1 Terminals
  • Low Self Discharge: Less than 10% after 90 days, can be stored up to 6 months at 25°C (77°F).


*Shipping does not include fees for highly rural location, hard to reach locations, shipping that requires air service, islands or location requiring ferry's. These locations may be subject to additional shipping fees. You will be advised prior to your order being processed if additional fees are required, at which point you may proceed with the order if accepted.

Tech Specs

  • Dimensions (LxWxH): 2.76 x 1.89 x 4.02 in
  • Terminal Height: 4.23
  • Weight: 1.89 lb
  • Shipping Weight: 3 lb
  • Maximum Charging Current: 1.35 A
  • DC Output Voltage: 6 V
  • Amp/Hr: 4.5 AH
  • Model: GP Series
  • Manufacturer: CSB Battery
  • Resistance: 18.5 mΩ
  • Operating Temperature: -5° to 122° F
  • Charging Temperature: -5° F to 104° F
  • Enclosure: ABS Plastic
  • Charging Voltage Standby Use: 6.75 - 6.9 V
  • Cycle Service Charging Voltage: 7.2 – 7.5 V
  • Manufacturer Part #: GP-645-F1
  • Made In: Asia
  • Terminal Position:

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