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Frequently Asked Questions
Should you want to purchase a Freedom Won battery please kindly contact one of our authorised installers or distributors on our ‘Where to buy’ page.
Yes, the Freedom Won LiTE, eTower and 12V batteries each have their own respective warranty. To find out more about these, please refer to our ‘Downloads’ page to view these warranties.
All Freedom Won battery specifications can be viewed on our batteries spec sheets on our ‘Download’ page.
Lithium Iron Phosphate, or LiFePO4 for short. These cells were developed in the Nineties for use in electric vehicles and they became affordable and available from around 2010 for this purpose. Freedom Won has been using these cells in our electric vehicles since 2011. They have proven themselves according to expectations and product specifications for longevity and reliability. Our immense expertise with these cells along with a slight reduction in cost has led to Freedom Won making this technology a resounding success in a vast array of stationary storage applications since the first installations were commissioned in 2014.
Our loose cells are imported from a long-standing manufacturer in China. The Freedom Won LiTE module is manufactured and assembled in South Africa.
Freedom Won LiTE can operate in temperatures between -15 Deg C and +45 Deg C without noticeable degradation of the battery life. Charging must be limited to temperatures above zero and continuous exposure above +40 Deg C is not advised (a few hours per day up to 45 Deg C is not a concern). If placed in a small room exposed to ambient heating it is advisable to provide ventilation. If inverters and charge controllers are present in the same small room then ventilation will be essential to remove the heat generated by these units.
The first number is the maximum amount of energy that is available from the unit on one cycle, which equates to 100% depth of discharge (DoD). Although it is common to use 100% DoD (or very near it) in electric vehicles from time to time, this is not recommended for daily cycling stationery storage applications. This is because the lifespan of the battery is significantly extended if an average of 70% DoD is used. This is designed into a system by making the battery slightly larger. The second number refers to the energy recommended per typical cycle, based on 70% DoD. This means that 70% of the maximum available energy has been used and this is the average DoD that should be targeted in an application design for optimal life. Typically lead acid batteries do not handle more than 50% DoD at all well, and many are designed to be limited to 30% DoD. This means that a lead acid battery often needs to be double the size of a Freedom Won LiTE when comparing like for like capacity in Ah.
Very fast. The cells are designed for extremely arduous duties as in electric vehicles. They can be fully discharged in 20 minutes without damage. In Freedom Won LiTE we take a more realistic view and design the module for a 2 hour discharge to contain costs in circuit breakers etc. A High Power option is however available on special request for short-term output UPS type installations that can deliver extremely high power. The cells can handle a full charge in less than an hour, but we know there will rarely be a charger connected with this kind of power so we assume a minimum charge time of 2 hours.
Freedom Won LiTE provides energy to the inverter when the grid is down or the PV power is insufficient. The inverter is integrated with the house electrical distribution by providing a circuit breaker in the main distribution board (DB) to feed to the inverter. The AC output of the inverter is then fed to a separate DB, which contains its own separate earth leakage and neutral bus as well as all the circuits that must have battery backup, typically all the lights and plugs. Large power consumers like geysers, stoves and pool pumps are normally connected to the main grid supplied DB. If it is an off-grid system then the geysers and stoves usually use gas, or sun and gas, or heat pumps. If the grid is available and/or there is sufficient PV power available these sources will charge Freedom Won LiTE through the inverter’s built-in charger or the solar charge regulator respectively.
Very little, it is dead easy. The wall mounted units are hung on two Rawl Bolts. For the Freedom Won LiTE 15/11, 20/14 and 31/21 the weight necessitates a high lift pallet jack for safely lifting them onto the rawl bolts. Alternatively, they can be hoisted into place using the eye bolt fixing point at the top of the unit. Then the positive and negative cables must be connected to the inverter along with the control cable. The control cable is supplied with the Freedom Won LiTE. The Freedom Won LiTE must be configured for the type of inverter being used, which can be done by Freedom Won prior to delivery or a qualified technician. To commission the unit, simply switch on the main switch and check that there are no errors indicated and confirm that the Freedom Won LiTE enables the inverter and charger as required.
Yes, four units of the same model can be connected in parallel if required. It is, however, more economical to purchase one larger model to meet the needs of the application. If you decide later that you need more energy storage then adding additional units in parallel is perfectly okay provided that the age difference in the units is not more than around 3 years.
Should you require assistance with a technical matter, please kindly contact the authorised installer or distributor from whom you purchased your battery. Please also consult your battery’s respective Freedom Won Installation Guide that can be found on our ‘Downloads’ page.
All inverters that are compatible with the Freedom Won batteries are listed in the ‘Freedom Won Inverter Interfacing Guide’.