Victron energy VE.Net DC Technical Information download pdf (Page 63)

8. Effect of temperature on capacity

As is shown by the graph below, capacity reduces sharply at low temperatures.

9. Cycle life of Victron batteries

Batteries age due to discharging and recharging. The

AGM Deep Cycle

10. Battery charging in case of cycle use: the 3

The most common charge curve used to charg

constant current phase (the bulk phase) is followed by two constant voltage phases (absorption and float), see fig. 3.

During the absorption phase the charge voltage is kept

reasonable time. The third and last phase is the float phase: the voltage is lowered to standby level, sufficient to compensa

self discharge.

Fig. 1: Effect of

Fig. 2: Cycle

Fig. 3: Three step charge curve

Charge voltage

Capacity

(%)

Cycles

8. Effect of temperature on capacity

As is shown by the graph below, capacity reduces sha

rply at low temperatures.

9. Cycle life of Victron batteries

Batteries age due to discharging and recharging. The

number of cycles depends on the depth of discharge, as is shown in figure

AGM Deep Cycle

Gel Deep Cycle Gel Long Life

10. Battery charging in case of cycle use: the 3

-step charge curve

The most common charge curve used to charg

e VRLA batteries in case of cyclic use is the 3

constant current phase (the bulk phase) is followed by two constant voltage phases (absorption and float), see fig. 3.

During the absorption phase the charge voltage is k

ept

at a relatively high level in order to fully recharge the battery within

reasonable time. The third and last phase is the float phase: the voltage is lowered to standby level, sufficient to compensa

self discharge.

Fig. 1: Effect of

temperature on capacity

Depth of discharge

Fig. 2: Cycle

life

Fig. 3: Three step charge curve

Charge current

Temperature

(

C

)

www.victronenergy.com

number of cycles depends on the depth of discharge,

as is shown in figure

e VRLA batteries in case of cyclic use is the 3

-step charge curve, whereby a

constant current phase (the bulk phase) is followed by two constant voltage phases (absorption and flo

at), see fig. 3.

at a relatively high level in order to fully rechar

ge the battery within

reasonable time. The third and last phase is the float phase: the voltage is lowered to standby level,

sufficient to compensa

te for

GEL AND AGM BATTERIES

Fig. 1: Eect of temperature on capacity

Fig. 2: Cycle life

Depth of discharge

AGM Deep Cycle Gel Deep cycle Gel long life

12.5

13.5

14.5

0246

e de chargegatloV

100

120

Courant de charge

Charge voltage

Charge current

Fig. 3: Three step charge curve

1 2 ... 58 59 60 61 62 63 64 65 66 67 68

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Victron energy VE.Net DC Technical Information Page 63

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