Overtime those molecules fracture, break apart, and lose their ability to hold a charge. The Lithium Iron Phosphate (LiFePO4) molecules that make up a Dakota Lithium, or any LiFePO4 battery, are stressed each time you charge a battery. Charging at 1C / 1 hr regularly will reduce the lifespan of lithium batteries.
0.5C (2 hours) is a common max charging speed for lithium batteries.Ĭharging time does impact lifespan. For other brands confirm that max charging amps in the battery’s specifications.
But all Dakota Lithium batteries can be charged at a rate of up to 1C and a charging time as low as 1 hour.
AT IRON CHARGE FULL
For example, a 12V 100Ah Dakota Lithium battery includes a free 12V 10A LiFePO4 battery charger that charges the battery from empty to full in 10 hours (100 Ah divided by 10 A = 10 hours).įor the longest lifespan LiFePO 4 batteries should be charged at less than. For example, a 24V battery bank requires a charger voltage of 28.8V, 36V requires 43.2V, etc.ĭakota Lithium Battery Voltage | Recommended Charging Voltage | Recommended Charging Speed (C)ġ2 Volts | 14.4 Volts | <0.3C (3 hours or more)Ģ4 Volts | 28.8 Volts | <0.3C (3 hours or more)ģ6 Volts | 43.2 Volts | <0.3C (3 hours or more)Ĥ8 Volts | 57.6 Volts | <0.3C (3 hours or more) How fast can I charge my battery?Ĭalculate the charge time by dividing the capacity of the battery (Ah for Amp Hours) by the charger output (A for Amps).
AT IRON CHARGE SERIES
For batteries wired in series multiply 14.4V by the number of batteries. What voltage is required to charge my lithium batteries?ĭakota Lithium Iron Phosphate (LiFePO4) 12V batteries should be charged at 14.4 Volts (V).
AT IRON CHARGE HOW TO
For more see the how to charge my battery from solar panels section below.
An example of a lithium specific solar charge controller would be the Victron SmartSolar MPPT 75/15 Solar Charge Controller. Enough solar power is lost due to the inefficiency of a lead acid solar charge controller attached to a lithium battery that the solar panels may fail to adequately charge the battery. Solar charge controllers always perform better when they are lithium battery specific or have a lithium setting. A solar charge controller transforms the energy produced by a solar panel to the ideal voltage to charge your battery. One exception is solar charge controllers. Lithium specific chargers maximize the performance and value of a lithium battery. The performance limitations of lead acid chargers being used for lithium batteries is significant enough that most lithium battery owners prefer to use lithium specific chargers. Please note that lead acid chargers do not damage the battery, they just prevent the battery from reaching it’s full capacity and performance potential. The result is lead acid battery chargers work, but only charge to 60-80% of the lithium battery’s capacity. As a result, the lead acid charger will think the battery is “full” once it reaches the lower voltage that is associated with a full lead acid battery. The voltage level of a full lead acid battery is about a volt lower than the voltage of a full lithium battery. A battery charger for a lead acid battery will work to partially charge a lithium battery, but only to a maximum of 60-80% of the lithium battery’s capacity. This includes Dakota Lithium Iron Phosphate (LiFePO4) and Lithium Nickel Manganese Cobalt (NMC) batteries. Do I need a special charger for lithium batteries?Īll Dakota Lithium and most lithium-ion batteries require a higher voltage than lead acid batteries to fully charge and perform best when charged with a lithium specific battery charger that charges at 14.4 – 14.8 Volts.
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