X hits on this document

PDF document

PDF File Technical Handbook - page 19 / 77

185 views

0 shares

0 downloads

0 comments

19 / 77

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 (Float) life characteristics (LC-R and LC-L)

(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

120

100

Capacity (%)

80

60

40

20

15

10

0

1

2 Time (years)

3

5

Trickle long life series

3

Service life years

1

Conventional products

0.5

Testing conditions Discharge: 0.25 CA, End voltage: 1.7V/2V Charging: 2.275V/2V, Constant-voltage control,

current: 0.15 CA

0.1

10

20

30 40

50

60

70

Temperature <˚C>

Duration of discharge (minutes)

Conventional

Trickle long

products

life series

16

Trickle life characteristics at 50C

300

250

200

150

(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

0

7

100

50

0

0

2

6

4 6 8 10 12 50˚C discharge period (months)

14

1

234 5 Conversion to 25˚C period (years)

Sealed Lead-Acid Handbook, Page 19

January 2000

4

Document info
Document views185
Page views185
Page last viewedSun Dec 04 14:50:58 UTC 2016
Pages77
Paragraphs6771
Words27603

Comments