If the battery is in protection, any meter reading is incorrect. All you are seeing is leakage across the 'off' fets. This will need a 12v dumb charger or a 'jump start' form another 12v battery connected in parallel for a few moments.
When a battery receives too little energy, it undercharges, often due to insufficient solar input, poor solar panel performance, or an improper charging setup. Undercharged batteries can lead to reduced functionality, shorter lifespan, voltage drops, and energy shortages, ultimately affecting your power supply and system efficiency.
All batteries will discharge at some point, and if there is little to no power left, it will damage the internal circuitry. As many solar panel users will point out, using a charge controller is one of the best ways to prevent unexpected battery drain.
A lot of batteries, especially lithium, have been designed to work in extreme heat and cold. However, lithium batteries are expensive so most solar power owners use lead acid. Lead acid batteries work fine with solar panels as long as you properly maintain it.
Can solar batteries be extended?
The good news is that the life of solar batteries can be extended. Some best practices include regular monitoring of battery aging and replacing old batteries, guarding against extreme weather conditions, and regular inspections for any internal issues or damages.
There can be a few reasons why your solar panel isn't charging the battery. No worries; as an expert, I've dealt with countless situations like these. It's typically down to technical challenges, common faults, or internal battery problems.
How can smart battery sensors help reduce solar battery problems?
Technological strides in the design of charge controllers and innovative solutions like smart battery sensors can aid in avoiding fast battery drainage and resultant solar battery problems. It's essential to stay updated and leverage these advancements.