VRLA Rechargeable Battery
BP28-12
FEATURES
Maintenance free(no water topping-up required).
No free acid(Non-spillable battery).
Low self-discharge rate, lower than 3% capacity loss per month.
Can be used in any orientation(excluding used inverted).
Absorbent Glass Mat technology for efficient gas recombination.
Measures
Technology
Values
Innovation
APPLICATION
UPS
Golf-Carts
Lawn Mowers
Wheelchairs
Electronic Medical Equipment
SPECIFICATIONS
Nominal Voltage
Nominal Capacity
Approx. Weight
Terminals
Internal Resistance
Max. Discharge Current
Max. Charge Current
Operating Temperature Range
12 V
28Ah @ 20 hour rate F.V.(1.75V/cell)
9600g(21.17lbs.)
B1 (Fitting M5 bolt & nut) , T2 and
I1
are optional
(Fully Charged )
10m
420 A (5 sec.)
8.4 A
Charge 0
o
C~40
o
C(32
o
F~104
o
F)
Discharge -20
o
C~50
o
C(-4
o
F~122
o
F)
Storage. -20
o
C~40
o
C(-4
o
F~104
o
F)
Standard: ABS( UL 94-HB) BP28-12
Optional: Flame Retardant ABS(UL 94-V0) BP28-12FR
Container Material
DIMENSION(mm/inch)
Length
IEC 61056-1
JIS C 8702-1
GB/T 19639.1
OUTER DIMENSIONS
TERMINAL TYPE
Terminal B1
12.0(0.47)
2.0(0.08)
11.0(0.43)
5.5(0.22)
Container Height
125±1.5
(4.92±0.06)
Total Height
125±1.5
(4.92±0.06)
7.95(0.31)
[M5 BOLT & NUT]
[M5 BOLT & NUT]
Terminal Hardware Initial Torque: B1
(2.5Nm±5%),I1(4.0Nm±5%)
Constant power discharge characteristics at 25
o
C/77
o
F
F.V.
(V/cell)
Discharge
Time
Unit: W
3 Hr
81.6
83.2
84.0
84.6
85.1
5 Min
1012
1172
1245
1301
1344
10 Min
745
807
836
856
874
15 Min
597
625
644
659
672
30 Min
355
369
377
383
386
o
1 Hr
203.8
209.9
213.7
216.2
218.4
o
5 Hr
56.3
57.1
57.4
57.6
57.8
10 Hr
31.45
31.92
32.08
32.18
32.18
2.0(0.08)
166±1.5
(6.54±0.06)
0.8(0.03) 6.35(0.25)
175±1.5
(6.89±0.06)
Width
4.5(0.18)
Terminal T2
3.4(0.13)
Terminal
I1
M5x0.8
20 Hr
16.55
16.80
16.88
16.93
16.93
1.80V
1.75V
1.70V
1.65V
1.60V
Discharge
Time
Constant current discharge characteristics at 25 C/77 F
F.V.
(V/cell)
Unit: A
3 Hr
6.80
6.94
7.00
7.05
7.09
5 Min
91.2
107.5
114.2
119.3
123.3
10 Min
65.6
71.1
73.6
75.4
76.9
15 Min
51.9
54.3
56.0
57.3
58.4
30 Min
30.1
31.3
32.0
32.4
32.7
1 Hr
17.12
17.64
17.96
18.17
18.35
5 Hr
4.69
4.76
4.79
4.80
4.82
10 Hr
2.621
2.660
2.673
2.681
2.681
20 Hr
1.379
1.400
1.407
1.411
1.411
1.80V
1.75V
1.70V
1.65V
1.60V
A/3
REV. Dec. 2013
All data and artworks shall be changed without prior notice, BB reserves the right to explain and update the information contained hereinto.
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