bosfa spiral lead acid battery
product introduction：


  
Brief Introduction about Spiral Battery
The bosfa application of the alloy that can effectively reduce the release of hydrogen, the special technique in manufacturing grid, and the appropriate match of active materials of both negative plates and positive plates, all these enable spiral valve-regulated sealed lead-acid battery (SPB), greatly restrain the release of hydrogen from negative plates, at the same time the generated oxygen, due to overcharge of positive plates, arrive at negative plates through the diaphragm and compose with lead in the negative, thus enable the recombination of gas inside of the battery and prevent the case of water loss so that water addition is free.
Comparing to flat battery, the spiral battery is made at high pressure through the spiral of plates of only 1mm.Special technique fashion characterizes the battery in many aspects:
1.      Superior high rate discharge capability, with max. discharge rate of 18C10
2.      Outstanding performance of high/low temperature, able to work under the temperature of -55℃～75℃
3.      Steady high work voltage, higher power density
4.      Robust structure have excellent performance of shock resistance
5.      No floating electrolyte, able to placed at any direction
6.      Fast chargeable charge is possible, 95% plus capacity may be charged within 40 minutes
7.      Super service life, design float charging service life is more than 8 years
8.      Excellent deep discharge performances in low current
Main application:
Instrument, electric tools, physical exercise devices, medical devices, solar light, electricity transferring equipment, standby power supply, Hybrid electric car and the start of the car
　
 the integrated battery specifications of bosfa SPB series pure lead spiral batteries  
　
type
　
Serial
Number
　
　
Nominal voltage(V)
　
Capacity
(C10Ah)
Dimensions(mm)
Weight
(kg)
　
Picture
Length
width
Height
Total height
SPB-2.5
S-001
2
2.5
Diameter 34.5
61.2
68.1
0.15

SPB-5
S-002
2
5
Diameter 44.5
73
81.5
0.29
SPB-8
S-003
2
8
Diameter 44.5
100
108
0.45
3-SPB-2.5
M-001
6
2.5
110
44
70
70
0.45
3-SPB-8
M-002
6
8
135
51
100
100
1.4
6-SPB-25
M-003
12
25
203
139
164
169
9
6-SPB-30
M-004
12
30
203
139
164
169
9.6
6-SPB-50
M-005
12
50
254
173
199
205
19.2
6-SPB-60
M-006
12
60
254
173
199
205
20.4
　
　
the grouped battery specifications of SPB series pure lead spiral batteries
　
　
type
　
Serial
Number
　
(V)
Nominal voltage
　
Capacity
(C10Ah)
(mm)Dimensions
　
Weight
(kg)
　
Picture
　
Length
　
width
　
Height
　
Total height
2-SPB-2.5
S-004
4
2.5
69
34.5
61.2
66
0.30
2-SPB-5
S-005
4
5
89
44.5
73
80
0.63
2-SPB-8
S-006
4
8
89
44.5
100
105
0.95
3-SPB-2.5
S-007
6
2.5
104
34.5
61.2
66
0.44
3-SPB-5
S-008
6
5
134
44.5
73
80
0.91
3-SPB-8
S-009
6
8
134
44.5
100
105
1.43
4-SPB-2.5
S-010
8
2.5
69
69
61.2
66
0.59
4-SPB-5
S-011
8
5
89
89
73
80
1.2
4-SPB-8
S-012
8
8
89
89
100
105
1.9
6-SPB-2.5
S-013
12
2.5
104
69
61.2
66
0.9
6-SPB-5
S-014
12
5
134
89
73
80
1.8
6-SPB-8
S-015
12
8
134
89
100
105
2.8
6-SPB-2.5
M-007
12
2.5
110
88
70
70
0.9
6-SPB-8
M-008
12
8
135
102
100
100
2.7
6-SPB-16
M-009
12
16
135
102
202
202
5.6
　

the electrical performance of bosfa SPB series pure lead spiral batteries

type: SPB-2.5(2V2.5Ah) 
　 discharge to 1.85V discharge to 1.75V discharge to 1.65V
时间 time 　 　
constant current（A） constant power（W） constant current（A） constant power（W） constant current（A）  constant power（W）
2min 14.8 26.9 18 32 20.8 35.6
5min 9.8 18.3 11 20.1 12.2 21.7
10min 6.8 12.6 7.3 13.7 7.8 14.3
15min 5.1 9.9 5.7 10.7 5.8 10.7
20min 4.2 8.3 4.5 8.6 4.8 9
30min 3.2 6.3 3.3 6.4 3.4 6.6
45min 2.3 4.6 2.4 4.7 2.5 4.8
1h 1.8 3.6 1.84 3.7 1.9 3.7
2h 1 1.95 1.04 2 1.1 2.02
3h 0.75 1.41 0.78 1.56 0.79 1.58
4h 0.57 1.14 0.6 1.2 0.61 1.22
5h 0.46 0.92 0.48 1 0.49 1
8h 0.3 0.6 0.32 0.65 0.32 0.75
10h 0.25 0.5 0.26 0.52 0.26 0.52
20h 0.13 0.27 0.14 0.3 0.14 0.3
　 　 　 　 　 　
type: SPB-5(2V5Ah)
　 discharge to 1.85V discharge to 1.75V discharge to 1.65V
 time  time
constant current（A） constant power（W） constant current（A） constant current（A） constant power（W）
2min 26.2 48.2 33.5 52.7 39.7 56.2
5min 18.3 34.3 21.8 37.7 24.6 39.8
10min 12.6 24 14.5 26.2 15.7 27.5
15min 9.8 18.8 11 20.4 11.7 21.2
20min 8.1 15.6 8.9 16.8 9.4 17.5
30min 6 11.7 6.5 12.5 6.8 13
45min 4.4 8.6 4.7 9.1 4.9 9.4
1h 3.5 6.9 3.7 7.2 3.8 7.4
2h 1.95 3.9 2 4 2.1 4.1
3h 1.5 3 1.5 3 1.6 3.1
4h 1.2 2.3 1.2 2.3 1.2 2.4
5h 0.9 1.9 1 1.9 1 1.9
8h 0.6 1.2 0.6 1.2 0.6 1.2
10h 0.5 1 0.5 1 0.5 1
20h 0.26 0.5 0.3 0.5 0.3 0.5
type: SPB-8(2V8Ah)
　 discharge to 1.85V discharge to 1.75V discharge to 1.65V
time  time
constant current（A） constant power（W） constant current（A） constant current（A） constant power（W）
2min 33.5 61.7 42.9 67.5 50.8 71.9
5min 26.4 49.4 31.4 54.3 35.4 57.3
10min 20.2 38.4 23.2 41.9 25.1 44
15min 15.7 30.1 17.6 32.6 18.7 34
20min 13 25 14.2 26.9 15 28
30min 9.6 18.7 10.4 20 10.9 20.8
45min 7 13.8 7.5 14.6 7.8 15
1h 5.6 11 5.9 11.5 6.1 11.8
2h 3.1 6.2 3.2 6.4 3.4 6.6
3h 2.4 4.8 2.4 4.8 2.6 4.96
4h 1.92 3.8 1.9 3.8 1.9 3.84
5h 1.44 3 1.6 3 1.6 3
8h 0.96 1.92 0.96 1.9 0.96 1.92
10h 0.8 1.6 0.8 1.6 0.8 1.6
20h 0.42 0.8 0.43 0.8 0.43 0.8
　 　 　 　 　 　
　 　 　 　 　 　
　 　 　 　 　 　
type: 3-SPB-2.5(6V2.5Ah)
　 discharge to 5.55V discharge to 4.95V discharge to4.95V
time  time 　 　
constant current（A） constant power（W） constant current（A） constant current（A） constant power（W）
2min 14.8 80.7 18 96 20.8 106.8
5min 9.8 54.9 11 60.3 12.2 65.1
10min 6.8 37.8 7.3 41.1 7.8 42.9
15min 5.1 29.7 5.7 32.1 5.8 32.1
20min 4.2 24.9 4.5 25.8 4.8 27
30min 3.2 18.9 3.3 19.2 3.4 19.8
45min 2.3 13.8 2.4 14.1 2.5 14.4
1h 1.8 10.8 1.84 11.1 1.9 11.1
2h 1 5.85 1.04 6 1.1 6.06
3h 0.75 4.23 0.78 4.68 0.79 4.74
4h 0.57 3.42 0.6 3.6 0.61 3.66
5h 0.46 2.76 0.48 3 0.49 3
8h 0.3 1.8 0.32 1.95 0.32 2.25
10h 0.25 1.5 0.26 1.56 0.26 1.56
20h 0.13 0.81 0.14 0.9 0.14 0.9
　 　 　 　 　 　
　 　 　 　 　 　
type: 3-SPB-8(6V8Ah)
　 discharge to 5.55V discharge to 4.95V discharge to4.95V
time  time
constant current（A） constant power（W） constant current（A） constant current（A） constant power（W）
2min 33.5 185.1 42.9 202.5 50.8 215.7
5min 26.4 148.2 31.4 162.9 35.4 171.9
10min 20.2 115.2 23.2 125.7 25.1 132
15min 15.7 90.3 17.6 97.8 18.7 102
20min 13 75 14.2 80.7 15 84
30min 9.6 56.1 10.4 60 10.9 62.4
45min 7 41.4 7.5 43.8 7.8 45
1h 5.6 33 5.9 34.5 6.1 35.4
2h 3.1 18.6 3.2 19.2 3.4 19.8
3h 2.4 14.4 2.4 14.4 2.6 14.88
4h 1.92 11.4 1.9 11.4 1.9 11.52
5h 1.44 9 1.6 9 1.6 9
8h 0.96 5.76 0.96 5.7 0.96 5.76
10h 0.8 4.8 0.8 4.8 0.8 4.8
20h 0.42 2.4 0.43 2.4 0.43 2.4
　 　 　 　 　 　
　 　 　 　 　 　
type: 6-SPB-2.5(12V2.5Ah)
　 discharge to 11.1V discharge to10.5V discharge to9.9V
 time time
constant current（A） constant power（W） constant current（A） constant current（A） constant power（W）
2min 14.8 161.4 18 192 20.8 213.6
5min 9.8 109.8 11 120.6 12.2 130.2
10min 6.8 75.6 7.3 82.2 7.8 85.8
15min 5.1 59.4 5.7 64.2 5.8 64.2
20min 4.2 49.8 4.5 51.6 4.8 54
30min 3.2 37.8 3.3 38.4 3.4 39.6
45min 2.3 27.6 2.4 28.2 2.5 28.8
1h 1.8 21.6 1.84 22.2 1.9 22.2
2h 1 11.7 1.04 12 1.1 12.12
3h 0.75 8.46 0.78 9.36 0.79 9.48
4h 0.57 6.84 0.6 7.2 0.61 7.32
5h 0.46 5.52 0.48 6 0.49 6
8h 0.3 3.6 0.32 3.9 0.32 4.5
10h 0.25 3 0.26 3.12 0.26 3.12
20h 0.13 1.62 0.14 1.8 0.14 1.8
　 　 　 　 　 　
type: 6-SPB-8(12V8Ah)
　 discharge to 11.1V) discharge to10.5V discharge to9.9V
 time 　 　 　 time 　 　
constant current（A） constant power（W） constant current（A） constant current（A） constant power（W）
2min 33.5 370.2 42.9 405 50.8 431.4
5min 26.4 296.4 31.4 325.8 35.4 343.8
10min 20.2 230.4 23.2 251.4 25.1 264
15min 15.7 180.6 17.6 195.6 18.7 204
20min 13 150 14.2 161.4 15 168
30min 9.6 112.2 10.4 120 10.9 124.8
45min 7 82.8 7.5 87.6 7.8 90
1h 5.6 66 5.9 69 6.1 70.8
2h 3.1 37.2 3.2 38.4 3.4 39.6
3h 2.4 28.8 2.4 28.8 2.6 29.76
4h 1.92 22.8 1.9 22.8 1.9 23.04
5h 1.44 18 1.6 18 1.6 18
8h 0.96 11.52 0.96 11.4 0.96 11.52
10h 0.8 9.6 0.8 9.6 0.8 9.6
20h 0.42 4.8 0.43 4.8 0.43 4.8

characteristic curve of bosfa SPB series pure lead spiral batteries

Capacity affected by temperature
Storage time affected by temperature
　
Most batteries lose their stored energy when allowed to stand on open circuit due to the fact that the active materials are in a thermodynamically unstable state. The rate of self–discharge is dependent both on the chemistry of the system as well as on the temperature at which the battery is stored.
　
　
　
Storage time affected by temperature
4.Discharge characteristic

　
Open Circuit Voltage Vs. State of Charge
　
　
 Charge constant voltage
　
　
Standby: voltage 2.27～2.35V/cell at 25℃（25℃）
　
　
Cycle: initial charging current less than 0.6C10, voltage 2.45～2.5V /cell at 25℃

check the price

back to homepage