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| Power-Sonic Model PS-490 Sealed Lead-Acid Battery
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Order Part Number:
PS-490
| General
Specifications |
| Dimensions: |
| Length |
3.97 inches |
101 millimeters |
| Width |
1.73 inches |
44 millimeters |
| Height |
3.74 inches |
95 millimeters |
| Height over Terminals |
4.02 inches |
102 millimeters |
| Approximate Weight |
2.80 pounds |
1.28 kilograms |
| Terminals: |
Quick Disconnect Tabs
(0.250"x0.032") |
| Case: |
ABS Plastic |
| Electrical
Specifications |
| Nominal Voltage: |
4 Volts (2 cell in series)
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| Nominal Capacity:
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| 20 hour rate |
(450mA to 3.50 volts) |
9.0 AH |
| 10 hour rate |
(830mA to 3.50 volts) |
8.3 AH |
| 5 hour rate |
(1530mA to 3.20 volts) |
7.65 AH |
| 1 hour rate |
(5400mA to 3.00 volts) |
5.4 AH |
| Energy Density (20 hour rate)
|
1.40 Watt-hours/cubic inch |
85.3 Watt-hours/l |
| Specific Energy (20 hour rate)
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12.9 Watt-hours/pound |
28.1 Watt-hours/kg |
| Internal Resistance (Fully Charged
Battery) |
10 milliohms (approx.)
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Charging :
Cycle Applications: Limit initial current to 1800mA. Charge until battery
voltage (under charge) reaches 4.80 to 5.00 volts at 68º F (20º C).
Hold at 4.80 to 5.00 volts until current drops to approximately 90mA. 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 4.50 to 4.60 volts continuously.
When held at this voltage, the battery will seek its own current level and
maintain itself in a fully charged condition.
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