Charge algorithms – Xantrex Technology PROsine 2.0 User Manual

Page 134

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Charging Algorithms

C–2

445-0089-01-01

Charge Algorithms

Table C-1 summarizes the voltage and current setpoints for the charging
algorithms. These voltage setpoints are applied for a battery temperature of 20°C.
To determine the voltage setpoints at other temperatures, apply the temperature
coefficient as follows:

For example, generic gel float voltage at 50° will be

V

T

X

V

20

°

TC

T

X

20

°

(

)

×

1000

------------------------------------------

+

=

V

50

°

13.8V

27

mV

°C

---------

50

° 20°

(

)

×

1000

-----------------------------------------------------

13.0V

=

+

=

Table C-1 Charge Algorithms

Charge

Algorithm

Comment

Temp Coeff.

Bulk / Absorption

Float

*

Equalize

Max V

Max I

Max V

Max V

(MV/°C)

(V)

(%C)

**

(V)

(V)

1

Generic Flooded

–27

14.4

30

13.5

17.5

2

Generic Gel

–27

14.2

25

13.8

***

3

Generic AGM

–21

14.3

30

13.45

***

4

Generic PB–Ca

–27

15.5

30

13.5

17.5

5

–27

14.1

25

13

17.5

6

–27

14.2

25

13.5

***

7

–30

14.5

25

13.5

17.5

8

–30

15.3

25

14.3

17.5

9

–30

14.4

30

13.5

17.5

10

–30

14.15

30

13.5

14.2

11

–27

14.4

30

13.8

***

12

–21

15.5

25

13.75

16

13

–21

14.8

25

13.6

15.5

14

–27

15

200

13.7

***

15

–21.66

14.2

12.5

13.7

16.5

16

–21.66

14

10

13.5

16.5

17

–27

16

20

13.5

17.5

18

–16

14.2

20

13.2

15.5

19

–15

14.7

200

13.5

17.5

20

–15

13.5

200

13.5

17.5

21

–27

14.6

20

13.5

17.5

* The charger delivers maximum available current to power the DC loads: it is not limited by battery size.

** See “Max Current (%C)” in your manual.

*** The algorithms marked *** do not permit Equalize.

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