LC-X1228P Panasonic - BSG, LC-X1228P Datasheet - Page 20

• Manufacturer Part Number: LC-X1228P
• Description: BATT SEALED LEAD ACID 12V 28AH
• Manufacturer: Panasonic - BSG
• Series: LCr

Specifications of LC-X1228P

• Voltage - Rated: 12V
• Capacity: 28Ah
• Size / Dimension: 6.47" L x 4.92" W x 6.89" H (165mm x 125mm x 175mm)
• Termination Style: Nut/Bolt, M5
• Rechargeability: Yes
• Weight: 25 lbs (11.3kg)
• For Use With: BVW122250003N - BATTERY CHG UNIV 12VDC @ 2.25A271-2390 - BATTERY CHG UNIV 12VDC @ 2.25A271-2386 - BATTERY CHG UNIV 12VDC @ 1.2A271-2385 - BATTERY CHG UNIV 12VDC @ 600MA271-2382 - BATTERY CHG UNIV 12VDC @ 500MA271-2381 - BATTERY CHG UNIV 12VDC @ 500MA271-2380 - BATTERY CHG 120VAC 12VDC @ 500MA271-2378 - BATTERY CHG 120VAC 12VDC @ 300MAPATC-08 - BATT CHARGER 12V 1.5A X 2 UNITPATC-03 - BATTERY CHARGER 12 VOLT 1.5 AMP
• Lead Free Status / RoHS Status: Contains lead / RoHS compliant by exemption
• Other names: LC-X1228; LC-XB1228; LC-XB1228P; LCX1228P; P049

CHARACTERISTICS - CONTINUED
b) Trickle (Float) life
Trickle life of the battery is largely dependent on the
temperature condition of the equipment in which the
battery is used, and also related to the type of the
battery, charge voltage and discharge current. The
respective Figures show the influence of temperature
on trickle life of the battery, an example of trickle
(float) life characteristics of the battery, and the test
result of the battery life in an emergency lamp.
Influence of Temperature on Trickle life
Trickle life characteristics at 122°F (50°C)
300
250
200
150
100
50
0
0
0
0
0.5
0.1
15
10
5
3
1
10
2
1
Testing conditions
Discharge: 0.25 CA, End voltage: 1.7V/2V
Charging: 2.275V/2V, Constant-voltage control,
1
20
Conversion to 25˚C period (years)
Conversion to 20˚C period (cycles)
50˚C discharge period (months)
4
2
Conventional products
current: 0.15 CA
Temperature <˚C>
2
6
30
3
(Test condition)
Discharge : 0.25 CA
Cut-off voltage: 1.7V/2V
Charge : 2.275V/2V
Constant-voltage control 0.2 CA
Discharge frequency : once every 21 days
Conventional
products
8
40
Trickle long life series
4
3
10
50
5
12
4
60
VRLA BATTERIES PAGE 19
Trickle long
life series
6
14
70
5
7
16
Trickle (Float) life characteristics (LC-R and LC-L)
120
100
80
60
40
20
0
1
Time (years)
(Test condition)
Discharge : 0.25 CA
Cut-off voltage : 1.75V/cell
Capacity check by every 3 months
Charge : 2.30V/cell
Constant-voltage control
Maximum current : 0.4 CA
Temperature : 20˚C to 23˚C
2
AUGUST 2003
3
4