Set ® Dual battery charger ZWEITBATTERIE LADER Equalizer EQ24 2424624 Merkblatt

Produktcode

2424624

Kiscsikós köz 10 Budapest 1033 Hungary, tel: +36-1-368-6212 fax:+36-1-250-1168
E mail : forex@forex.hu Internet : www.forex.hu

Charging Equaliser

The problem is evergreen.
Two 12 V batteries connected in serial can never be charged equally. One of
them accepts lower (e.g. 13.6 V), the other higher (15.2 V) charging voltage at
the same charging current.

This imbalance is self progressive and shortens the life of both batteries, due to
sulphating (caused by undercharging) and drying up (caused by overcharging)

Section 1 Section 2 Section 3 Section4

To demonstrate the effect of our equalizer we connected
two new batteries in serial and measured the voltages at
their terminals, when:

Section 1: They were not connected to charger and
EQUALIZER. (OCV:

12.72V

and

12.71V

)

Section 2 : They were connected to 28.8 V constant voltage
charger without EQUALIZER (

13.6V

and

15.2V

)

Section 3: They were connected to charger and
EQUALIZER. (

14.38 V

and

14.42 V

)

Section 4: They were connected to charger without
EQUALIZER again. (

13.6 V

and

15.2 V

)

It can be seen, that the Charging Equaliser immediately eliminates the charging voltage imbalance
, and guaranties the equal charging voltage which results equal state of charge of the batteries.

Results:

decreasing voltage on the overcharged battery

increasing voltage on the undercharged battery

increased starting current because of equal state of charge

increased battery life

Application:

trucks, buses
wheel chairs, cleaning machines
anywhere where 12 V batteries are connected in series

Changing of voltages

measured on two series connected batteries while charged with constant 28,8V

(Maxxima 900 and Maxxima 900DC)

13,5

14,5

15,5

t(h)

U(V)

Maxxima 900

Maxxima 900 DC

12,5

13,0

13,5

14,0

14,5

15,0

15,5

120

150

180

210

240

270

300

[minute]

U[V]

1st Battery
2nd Battery
14,4V