URB12550
Technical Datasheet
Technical Specifications
Part No
Chemistry
IEC Designation
Average Voltage
Nominal Capacity
1
Voltage Range
Max. Continuous Discharge
Max. Pulse Discharge
2
Energy
1
Energy Density
Weight
Cycle Life
Operating Temperature
Storage Temperature
Internal Resistance
Self-Discharge @ 23°C
Memory Effect
Exterior/Housing
Terminals/Connector
Size
Communications
State of Charge Indicator
Protection
URB12550
Lithium Iron Phosphate (LFP)
4IFR27/66-18
12.8V
55.8Ah
10.0V - 14.4V
60A
250 ± 30A
714Wh
91Wh/kg, 104Wh/l
Approx. 7.85 ± 0.2kg (17.3 ± 0.44lbs)
>1500 cycles
-20°C to 60°C discharging
0°C to 45°C charging
0°C to 40°C
≤20mΩ
<5% per month
None
Hard plastic, ABS
M8 Screw Terminals
Length:
256 ± 1mm (10.12in)
Width:
132 ± 1mm (5.24in)
Height:
200 ± 1mm (7.91in)
None
None
Overcharge:
3.90V (per cell)
Over Discharge:
2.00V (per cell)
Over Current:
250 ± 30A (15-25ms)
Over Temperature:
65 ± 5°C
Short Circuit:
Cell Imbalance:
Connect the battery to a DC power source using correct
polarity and apply a maximum voltage of 14.4V. Limit the
current to the recommended rate of 11.0A and hold 14.4V
until the current declines to 1.1A. Maximum charge rate
is 55.0A.
Alternatively, you may apply a maximum charge
voltage of 13.6V (limiting the current to 11.0A) and hold
indefinitely to maintain the battery in a continuous standby
state-of-charge of between 70-90%.
Material Safety Datasheet - MSDS00152
Refer also to Safety Guide UBM-5112
CB Scheme
JPTUV-056352
Class 9 International and within U.S.
4
Excepted when
shipped by motorcar or rail within U.S.
8507.60.0000
Li-Ion LFP Benefits Over SLA
• Uniform voltage during discharge
• No need to provide trickle charging to retain
battery’s charge
•
Significantly lighter weight for the same amount
of energy
• Battery does not become gaseous during use
• Nominal voltage is maintained over a wider
temperature range
Features
• Integrated carry handles
• Can be properly charged using a 2 phase SLA
charger
• IEC61233, 2nd edition compliant
Charging
Applications
• Scooters / wheelchairs
• UPS battery replacement
• Solar power battery
Safety
Certifications
Constant Voltage
Charge at 23˚C
Standby Use
Cycle Use
Voltage
Regulation
13.6V
14.4V
Initial
Current
11A
27.5A
Maximum
Current
55A
55A
Transportation
Harmonized Tariff Schedule
Notes
1. Using a C/5 discharge rate at 25°C.
2. Maximum pulse width of between 15ms and 25ms.
3. Number of consecutive C/5 rate discharges and recommended charges at 25°± 5°C until the battery
reaches 80% of initial capacity.
4.
Transportation regulations, classifications and lithium content are available on the Ultralife website.
URB12550
Newark, New York | +1 315-332-7100 | Fax: +1 315-331-7800
©2017 Ultralife Corporation • www.ultralifecorp.com • All information is subject to change without notice.
The information contained herein is for reference only and does not constitute a warranty of performance. •
24 OCT 17 UBM-0094 Rev: D