Universal UB645 / D5733 Sealed Lead Acid Battery, 6V 4.5AH

Part Number
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Universal UB645 / D5733 Sealed Lead Acid Battery is perfect for a variety of applications including emergency lighting, exit lights, electronics, and custom battery designs. This 6V 4.5AH battery is designed for long-lasting performance and reliability. With a compact size of L: 2.78" x W: 1.88" x H: 3.98", this battery is easy to install and fits seamlessly into your existing setup. The sealed lead acid battery chemistry ensures safe and efficient operation, while the high-quality construction from UPGI guarantees durability. Trust the UB645 / D5733 battery for all your power needs.




Amp Hour

Valve Regulated Lead Acid (VRLA)
Absorbed Glass Mat (AGM)
Outstanding Performance
Shock & Vibration Resistant

Excellent resistance chemicals and heat
Low self-discharge
UL recognized
Non-Hazardous & Non-Spillable

2.78" / 70.6mm


1.88" / 47.8mm


3.98" / 101mm


Nominal Voltage 6 Volts
Nominal Capacity
20-hr (0.23A) 4.50 Ah
10-hr (0.42A) 4.19 Ah
5-hr (0.77A) 3.83 Ah
1-hr (0.90A) 2.70 Ah
Approximate Weight 1.59 lbs (0.07 kg)
Internal Resistance (approx.) 18 mΩ
More Information
Part Number UB645
MPN D5733
Battery Voltage 6 Volt
Capacity 4.5 AH
Battery Chemistry Sealed Lead Acid
Terminal Type F1
Length 2.78"
Width 1.88"
Height 3.98"
Height Over Terminals 4.18"
NSN 6140-01-338-9155
Warranty 6 Months
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