![]() ![]() For instance, if it is a 100 amp-hour battery, the voltage should be maintained at 2.5V per cell until the current decreases to 1-2 amps. This voltage level is maintained until the battery current reduces to approximately C/50 to C/100, where C is the amp-hour rating of the battery. It is this region where the last 20% of battery capacity is returned. When the battery voltage reaches approximately 2.4 volts per cell, or 14.6 volts for a 12V battery, the charger voltage is held constant at this level and the battery current is allowed to reduce. All Chargetek lead acid chargers except the CT150 (which is a maintenance charger) are three stage chargers and return full capacity. Three stage charging is the method most lead acid battery manufacturers recommend as the best and most efficient way to return full capacity to the battery and extend battery life. This charger will maintain the battery indefinately without boiling out electrolyte or overcharging the battery. Float mode is where the battery voltage is maintained at approximately 2.25 volts per cell, or 13.5 volts for a 12V battery. The Float mode follows the constant current mode. Approximately 80% of battery capacity is returned in the constant current region. Stage 1: Constant current charging or bulk charge modeĪssuming the battery is starting in a discharged state, the charger is operating in constant current mode, where the charger current is maintained at a constant value and the battery voltage is allowed to rise as it is being recharged. The battery charge is maintained over the long term by the maintenance charger. Maintenance chargers are often used where the primary charging source, such as an alternator, is used infrequently. Maintenance type chargers are useful in applications such as battery storage and where there is no requirement to return 100% of the battery capacity by the maintainer. ![]() The Chargetek 150 is a maintenance charger. The two charging cycles described below, the maintenance charging cycle and the three state charging cycle, are for lead-acid batteries. Different battery chemistries, such as lead acid, Ni-Cad, etc. A battery charge cycle describes the voltage and current relationship in a battery as the charger returns the energy capacity to the battery. ![]()
0 Comments
Leave a Reply. |