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UB685 Universal Power Group Sealed Lead Acid Battery UB685 6V 8.5Ah UPG SLA Battery UB685

UB685 Universal Power Group Sealed Lead Acid Battery UB685 6V 8.5Ah UPG SLA Battery UB685Quantity in Basket: none
Code: UB685

Shipping Weight: 4.10 pounds
Length: 3.82"
Width: 2.19"
Height: 4.60"
General Specifications


3.82 inches

98 millimeters


2.19 inches

56 millimeters


4.60 inches

116 millimeters

Height over Terminals

4.65 inches

118 millimeters

Approximate Weight

4.10 pounds

1.86 kilograms


"F1" Quick Disconnect Tabs (0.187"x0.032")


ABS Plastic

Electrical Specifications
Nominal Voltage:

6 Volts (3 cell in series)

Nominal Capacity:

20 hour rate

(400mA to 5.25 volts)

8.0 AH

10 hour rate

(750mA to 5.25 volts)

7.5 AH

5 hour rate

(1300mA to 5.10 volts)

6.5 AH

1 hour rate

(4600mA to 4.50 volts)

4.6 AH

Energy Density (20 hour rate)

1.21 Watt-hours/cubic inch

73.0 Watt-hours/l

Specific Energy (20 hour rate)

14.5 Watt-hours/pound

32.0 Watt-hours/kg

Internal Resistance (Fully Charged Battery)

15 milliohms (approx.)


Cycle Applications: Limit initial current to 1600mA. Charge until battery voltage (under charge) reaches 7.20 to 7.35 volts at 68 F (20 C). Hold at 7.20 to 7.35 volts until current drops to approximately 80mA. Battery is fully charged under these conditions, and charger should either be disconnected or switched to "float" voltage.

"Float" or "Stand-by Service": Hold battery across constant voltage source of 6.75 to 6.90 volts continuously. When held at this voltage, the battery will seek its own current level and maintain itself in a fully charged condition.