How to choose a suitable energy storage battery?
How to choose a suitable energy storage battery?
When you are planning to design or build a hybrid or off grid solar system, people is always confused or hesitating what storage battery they should choose. There are many different types battery suitable for energy storage, they are designed with different technology, such as AGM battery technology, Nano GEL
technology, Pure GEL technology, Lead carbon technology, Tubular GEL OPz technology, LiFePO4 lithium ion cell etc. In a word, there are two major technologies: one is lead acid battery, another is lithium li-ion lifepo4 battery technology. Their prices and life cycle is much difference. So what energy storage battery is suitable for you? Your budget and life cycle expectation are the two main factors.
Types of energy storage solar battery:
1) AGM deep cycle battery
2) GEL deep cycle battery
3) Lead Carbon fast charge battery
4) Pure GEL battery
5) 2V AGM or GEL long life battery
6) Tubular GEL OPzV battery
7) Tubular OPzS flooded battery
8) Lithium deep cycle long life LiFePO4 battery
How does lithum solar battery or lead acid solar battery work?
The main function of lithium battery or lead acid battery is to store power generated from sunshine. The battery bank will supply youcontinuous power when you need or power outage. They can supply electricity to all appliances of your home.There are two ways to charge your battery. One is Solar panel charge the lithium or lead acid battery by solar controller, another way is to charge the battery from grid power.
1. battery cost
Normally the price of lithium lifepo4 battery is about 2-3 times of a tradtional lead acid energy storage solar battery. Of course, the real good lead acid battery like lead carbon battery, pure gel battery, tubular OPzV/OPzS battery, their prices are also little high, but it is still much lower than lifepo4 rechargeable storage battery.
2. life span
For general lead acid battery, their life is about 3 years. But for lithium battery, they can last more than 10 years, more than 6000cycles at 80% DOD. So in terms of life cycle, the lifepo4 battery has absolute advantages.
3. output power
As the lithium battery can max discharge to 90%DOD, even 95%DOD, for a same battery bank, they can deliver much more power than lead acid battery, as lead acid battery normally discharge to 50%DOD.
4. recharge speed
The lithium battery can be charged with 0.5C, even 1C, they can be fully charged in a very short time. But for lead acid battery, their charge current is only 0.2C, so it cost much longer time to fully charge. Due to this reason, the lithium ion battery can provide faster and more power after discharge. Lead acid battery only has one type fast charge battery, it is the lead carbon fast charge battery.
5. battery protection
The LiFePO4 battery module come with smart BMS, they are able to prevent battery from short circuit,
over charge, over discharge and so on. The lead acid battery doesn’t have any protection.
After reading this article, we belive you already have some ideas on how to choose a energy storage battery. Enercore is producing all types of lead acid energy storage battery and lifepo4 lithium rechargeable battery. We are professional manufacturers. If you are looking for reliable energy storage battery or partners, we are confident to be your strong backup.
