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Universal 6v 4.5 AH Deep Cycle Sealed Lead Acid Battery SLA-640

Was: $23.00
Sale Price: $16.95
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Product InformationStore Part Number: SLA-640


Replaces: Ps640f1, ub640, UB645, UB645K

The Universal UB645K battery is manufactured under the most versatile computer control battery formation system and technology to achieve the highest quality. The automated, computer controlled system provides programmed functions for steps of current, time, voltage, temperature and event control to match the performance specifications of your application requirements.

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


  • Maintenance Free
  • Valve Regulated
  • Used in Multiple Applications
  • Float and Cycle Use
  • High Discharge Rate
  • Absorbed Glass Mat (often referenced as Gel Cell)
  • Leak Proof/Spill Proof
  • Tank formed plates
  • Temperature control formation
  • Constant current formation
  • High quality battery/better uniformity
  • Constant voltage formation


*Free Shipping is for the Lower 48 United States for large orders that qualify for a per item discount. Large orders that qualify for a per item discount does not include fees for highly rural location, hard to reach locations, 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): 2.78 x 1.88 x 3.98 in
  • Terminal Height: 4.18
  • Weight: 1.59 lb
  • Shipping Weight: 3.0 lb
  • Maximum Charging Current: 1.35 A
  • DC Output Voltage: 6 V
  • Operating Temperature: 5 ° to 113 °F
  • Model: UB645K
  • Manufacturer: Universal Power Group
  • Ambient Temp Charge: 32 ° to 104 °F
  • Amp/Hr: 4.5
  • 20 Hr. Rate Amp/Hr: 4.5
  • Charging Voltage Standby Use: 6.80–6.90 V
  • Cycle Service Charging Voltage: 7.25–7.45 V
  • Capacity at C/20: 4.5
  • Manufacturer Part #: UB645K
  • Made In: Asia
  • Terminal Position:

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Reviews and Ratings

5.00 Average
5 Stars 1
4 Stars 0
3 Stars 0
2 Stars 0
1 Stars 0
Rated 5.00/5 Stars from 1 customer reviews.

Do you own the SLA-640? Please, tell us what you think about it. It helps us provide you with better products. Please note that it may take up to 72 hours for your review to appear.

6 volt 4.5 amp hour Battery
Pros: We just purchased one of your products (6 volt 4.5 amp hour Battery) and was delivered within 2 weeks. The battery was neatly packed, charged, and ready to go. We reside in Okinawa, Japan and there has been numerous issues with shipping with other companies in the U.S. Your company, Outstanding shipping and product! Matter of fact, I just happen to browse your web site, looking for a specific battery. I used your "technical department" by sending an E-mail and had a reply and an answer within a day. (Very impressive!!) Great! Customer Service. For future reference, will be our first stop, when in need of any type of batteries.
Cons: NA!
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Written by on Apr 30, 2012. Ownership: Just Bought. Knowledge Level: AC/DC is more than a band — (87 of 169 customers found this review helpful

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Manuals & Tutorials

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