Charging Method & Battery Application.

There are four basic methods to charge an MX battery, each with its won variations and application benefits.
In both cases, the charging mode should be controlled constant voltage charging.

ambient Temperature : 25C (77F).

Application
Charging Method

Cyclic Operation

Trickle Operation

Float Operation

Refresh Charge
During Storage

Constant Voltage

Regulation range of controlled voltage:
2Volt batteries:
2.40V to 2.45V

6 V batteries
7.35V to 7.50V
(per cell 2.45V~2.5V)

12V batteries:
14.70V to 15.0V
(per cell 2.45V~2.5V)
Initial current:
0.4C or less:
Short-time charge
allowed.

Regulation range of controlled voltage:
2Volt batteries:
2.23V to 2.25V

6 V batteries:
6.80V to 6.90V
(per cell
2.26V~2.3V)

12V batteries:
1Ah~10Ah
13.6V to 13.8V
(per cell 2.26V~2.3V)
15Ah ~ 200Ah
13.38V to 13.68V
(per cell
2.23V ~ 2.28V)
Initial current:
0.4C or less
This method can provide a short-time charge
Voltage must be regulated or battery may be overcharged or over discharged.

Regulation range of controlled voltage:
2Volt batteries:
2.23V to 2.25V

6 V batteries:
6.80V to 6.90V
(per cell
2.26V~2.3V)

12V batteries:
1Ah ~ 10Ah
13.6V to 13.8V
(per cell 2.26V~2.3V)
15Ah~200Ah
13.38V to 13.68V
(per cell
2.23V ~ 2.28V)
Initial current:
0.4C or less
Not allowed to use if current capacity of the charger is not big enough to maintain the specified charging voltage during float.

Regulation range of controlled voltage:
2Volt batteries:
2.40V to 2.45V

6 V batteries:
7.35V to 7.50V
(per cell 2.45V~2.5V)

12V batteries:
14.70V to 15.0V
(per cell
2.45V~2.5V)
Initial current:
0.4C or less.
Short-time charge allowed.
Several of the same model batteries under the same storage can be charged in series.
Otherwise, they should be recharged in separate groups.

Constant Current

Charging current:
approx. 0.1C
Charging time control is recommended because an overcharge is more likely to occur.

Not applicable.

Not applicable.

Charging current:
approx. 0.1C

Combination

 

Tow-step charge:
Charging current:
approx. 0.4C at the first step.  0.00002C to 0.00004C at the second step.
A time control or a charging voltage detection to transfer from the first step to the second.

   

Charging Voltage Compensation for Battery Temperature.
1. Float Operation: Vc,t =Vc, 25-0.0033 (+-25)
2. Cycle Operation: Vc,t =Vc, 25-0.0005 (t+-25)
( Vc: Charging Voltage, t= Temperature, VC,t=Charging Voltage at tC