A wide selection of premium imported or locally assembled solar battery options are available in South Africa.
Reducing your reliance on the grid through self-consumption and providing reliable clean efficient energy backup when the grid fails.
Making the right choice of battery system for your energy storage needs is critical for the optimal functioning and success of your solar or backup solution, making up a sizeable portion of the total cost of a solar installation avoid costly mistakes get the right advice.
Popular solar battery brands
The BSLBATT LiFePo4 battery offers optimal performance and longevity for the residential and commercial battery markets.
It is a scalable battery system that meets your energy needs.
Pylontech Low voltage energy storage, for residential and SME, Flexible easy installation modular design.
Freedom WON LiTE energy storage products and solutions with proven performance, functionality and reliability.
BLUE NOVA Batteries Renowned for their reliability and durability, BlueNova products allow for high-cycling and longevity, so you don’t have to compromise.
Magneto Batteries Lithium and Supercapcitor energy storage up to 100% DOD with fast charge and discharge rates.
Storage for Solar and ups
Contact us for alternative Supercapacitor options
General Battery Info
Basic Battery Specifications to Consider When Buying Solar Batteries
Most popular lithium solar batteries available in South Africa have a 10year manufacturer’s warranty, the terms of the warranty will vary depending on the manufacturer, this can be linked to the number of cycles and charge rates.
All battery warranties will be void under the following conditions, incorrect installation and settings, any physical damage, opening or stripping the battery.
Battery Life Cycle
The life cycle of a battery is the number of charge and discharge cycles it completes, which is each time you use and the recharge the battery.
Solar batteries are cycled for self-consumption and backup so can cycle multiple times day.
The number are cycles can also be affected by the total depth of discharge, a battery that is discharged fully will have less life cycles than a battery that is discharged partially although some lithium battery can be discharge by 100% the recommended DOD depth of discharge for most lithium batteries is 80%
The rate of discharge can also affect the batteries overall life span (How quickly the battery is discharged)
There are other external factors that can influence life cycles like average temperature.
The expected life span of solar batteries under optimal conditions.
The average design life of most lithium batteries is about 20 years +
Depth of Discharge (DOD)
Battery manufactures will specify the maximum depth of discharge and the recommend discharge level, with lithium the recommended depth of discharge is normal around 80% sometimes lower some manufacturers offer up to 100% without significant degradation.
Discharging solar batteries over the recommended discharge level will ultimately result in a loss of life cycles and reduce the batteries overall lifespan.
The rate at which a battery can be discharged a 1C battery can discharge in 1 hour a 0.5C battery should discharge quicker than 2 hours a 0.2C rated battery will discharge in 5hours.
Higher rated solar batteries generally have better thermal properties and undergo less stress during the charge and discharge process.
4.8KW 48V 0,5C rate can discharge at 50Ah continuously for 2 hours totalling 4.8KW hours of used energy.
4.8KW 48V 1 C rated battery can discharge continuously for 1 hour totalling 4.8KW hours used energy.
Maximum and Recommended Rate of Charge and Discharge.
Maximum rate of charge and discharge
Tthis is the maximum amount of energy that can be used at any given time, some lithium batteries will only allow maximum rate of charge and discharge for a specific period of time and the battery protection will turn the battery off if the allowed time at maximum discharge is exceeded to prevent damage.
Recommended charge and discharge current
This is normally the recommend constant current that the battery should not exceed this is to protect the battery from damaged and to optimise the overall life and performance of the battery.
Battery / Inverter Compatibility.
Not all batteries are compatible with all inverters manufactures of both solar inverters and solar batteries would normally have a list of which product are compatible.
Most compatible products will have communication between the inverter and the battery, to ensure optimal performance and monitoring.