VRLA Lead-acid batteries have long been the UPS power system source preferred by data centre operators, due to the reliability if well-managed & low initial project cost. However, li-ion batteries has been capturing more interest for some time now.
![](https://www.csbatterycn.com/js/tinymce/demo/images/202207/27/94f8ac1385224ea398a2cead26e916a5.jpg)
Lead-acid battery (VRLA) is a battery whose electrodes are mainly made of lead and its oxides, and the electrolyte is a sulfuric acid solution. VRLA Battery 200% Heavy then Lion battery.
![](https://www.csbatterycn.com/js/tinymce/demo/images/202207/27/22ca41e99a687fff0350e15c30acab91.jpg)
Lithium battery is a kind of battery that uses lithium metal or lithium alloy as negative electrode material and uses non-aqueous electrolyte solution. Lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium ion batteries.
Usually VRLA battey use at 50-80% Deepth, and Lithium battery use at 80-100%.
![](https://www.csbatterycn.com/js/tinymce/demo/images/202207/27/1d5b379a12040ebfbfab337bf67152bb.jpg)
Lithium Battery is light weight, but May explode if used incorrectly! VRLA Battery is a little heavy, but its 100% stable and safe, will never cause danger to you!
![](https://www.csbatterycn.com/js/tinymce/demo/images/202207/27/6d4f5b8ba0c79c8677b13ece5c1ce919.jpg)
Btw, Lead in batteries can be recycled and reused, reducing environmental pollution. Lithium batteries are not recyclable, they can only be thrown away when worn out.
![](https://www.csbatterycn.com/js/tinymce/demo/images/202207/27/22e1174d9ac11b6281ad74a3993b482f.jpg)