14.4V 3200mAh Replacement Battery for Ecovacs Deebot Ozmo 900,901,Deebot N8, N8 Pro Robot Vacuum Cleaner

Q:What are the classifications of batteries?

A:Batteries can be divided into primary batteries (dry cells), secondary batteries (rechargeable batteries or gel batteries), fuel cells, solar cells, etc. Secondary batteries can be divided into lead-acid batteries, nickel cadmium batteries, nickel hydrogen batteries, and lithium-ion batteries (which can be divided into liquid lithium-ion batteries and polymer lithium-ion batteries,lithium iron phosphate battery)

Q:What are the battery energy density and power density?

A:The two most common concepts associated with batteries are energy density and power density. Energy density is measured in watt-hours per kilogram (Wh/kg) and is the amount of energy the battery can store with respect to its mass. Power density is measured in watts per kilogram (W/kg) and is the amount of power that can be generated by the battery with respect to its mass. To draw a clearer picture, think of draining a pool. Energy density is similar to the size of the pool, while power density is comparable to draining the pool as quickly as possible. 

The Scientists and engineers keep to find solution on increasing the energy density of battery while reducing the cost,and maintaining an acceptable power density of lithium ion battery.