With lithium it is less likely, but storing a fully discharged battery should still be avoided. 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.
So while charging to 100% is not recommended, you should charge up to 85% to 95%. That will allow you to use the battery for longer periods without needing to recharge. With lithium ion batteries such as the PowerTex 100ah 12V, you should expect the battery to last longer with its better discharge rate.
You should not fully charge or discharge solar batteries, but neither should you avoid filling it with power. As long as you keep it at 85% full, the battery should be able to give you the power you need. Batteries should be recharged within 24 to 48 hours in warm weather, and 2 to 3 days for cool weather.
Batteries should be recharged within 24 to 48 hours in warm weather, and 2 to 3 days for cool weather. Recharge solar batteries as soon as possible, especially if it is fully discharged. Fully discharged batteries that are not recharged after a long period results in sulfation.
Our solar power systems and energy storage products are engineered for reliability, safety, and efficient deployment. All systems include comprehensive monitoring and control systems with remote management capabilities.
Not Enough ChargeToo Long Between Battery RechargesNot Using A Charge ControllerPutting A Fully Discharged Battery in StorageOverheatingPoor Battery MaintenanceIncreased LoadDefective Charge Controller Or InverterConclusionAnother possible reason your battery drains quickly is it has a heavy load. If you have been using the same battery bank for a while but increased the load, the system will lose power quicker. This is why you must always plan ahead for solar power. Determine how many solar panels you will need and what batteries to go along with it. Here are some p...See more on portablesolarexpert Solar Gear Guide
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