The reason why you battery is not keeping charge
A solar system comprises of 3 important components -
1. Charging system
2. Storage system
3. Conversion system
All three work together to ensure that your system is always up and providing you with power for your appliances when you need it.
The charging system can be the power utility company like ZESA, your solar panels, or standby generator. It goes without saying that when any of these sources of power are not available in sufficient quantities your battery will not charge fully. This is often the reason why the battery does not last long. Its because it was not fully charged and therefore has no power to power your loads.
A cloudy day means solar panels will produce less and prolonged ZESA power cuts means your battery is not charging. The number of solar panels on your roof also plays an important role in ensuring that the battery is being charged fully.
How your solar panels are installed also matters. If there is any shading of any sort on your roof and panels are connected in series it means that the power coming out of your panels will be reduced. Watch this video to see what happens when a panel is affected by shading.
The other problem your battery is not keeping charge is the inverter settings. Sometimes installers neglect to follow the battery manufacturer's instructions on battery charging parameters. Gel, AGM, Lead Acid, Tubular, Lithium all have different charging parameters.
If your battery is old, it will also stop holding charge. Some batteries last for 2 years, 3 years, 5 years or 10 years depending on battery care and chemistry. Its important to have your system checked every 6 months by professional installers to ensure you are getting the best out of it.
Not all inverters can work with all types of batteries. Make sure your inverter is designed to work with the battery you choose. Need help with your solar system get in touch with us at www.solarpro.co.zw