Requires an area where maintenance can be performed
Sealed (Dry Cell) (Maintenance Free)
GEL
Do not need to be kept upright
Reduce the electrolyte evaporation and spillage that is common with wet-cell battery
Greater resistance to extreme temperatures, shock, and vibration
Same flooded batteries except that the antimony in the lead plates is replaced by calcium
AGM (Absorbed Glass Matte)
No spilling of acid
Low maintenance (no top up needed)
Temperature tolerant (operate at -20°C)
Vibration resistant
Discharge much deeper
Charge much faster
VRLA ( Valve Regulated Lead Acid battery)
The valve regulating mechanism allows for a safe escape of hydrogen and oxygen gasses during charging.
Lithium-ion
Overall (in comparison to lead acid) these batteries are lighter, have a deeper life cycle (they can discharge 100%), charge faster, have a greater lifecycle and have a higher output. Really the only downside is the price. Currently they are around 8x or more expensive than a lead acid battery.
Lithium Cobalt Oxide
High capacity
Common in cellphones, laptops and electronic cameras
Shorter lifespan and limited specific power
Lithium Manganese Oxide
High thermal stability
Safest
Common in medical equipment
Lithium Iron Phosphate
Durable
Long cycle life
Common in electric vehicles
Lithium Nickel Manganese Cobalt Oxide
Either has a high specific energy or high specific power (not both)
Common in power tools and electric vehicles
Lithium Nickel Cobalt Aluminum Oxide
Long lifespan
Common in electric powertrains and in grid storage
