What are some of the major types of lead acid batteries?

Batteries are divided in two ways, by application (what they are used for) and construction (how they are built). The major applications are automotive, marine, and deep-cycle. Deep-cycle includes solar electric (PV), backup power, and RV and boat "house" batteries. The major construction types are flooded (wet), gelled, and AGM (Absorbed Glass Mat). AGM batteries are also sometimes called "starved electrolyte" or "dry", because the fibreglass mat is only 95% saturated with Sulphuric acid and there is no excess liquid. Flooded may be standard, with removable caps, or the so-called "maintenance free" (that means they are designed to die one week after the warranty runs out). All gelled are sealed and a few are "valve regulated", which means that a tiny valve keeps a slight positive pressure. Nearly all AGM batteries are sealed valve regulated (commonly referred to as "VRLA" - Valve Regulated Lead-Acid). Most valve regulated are under some pressure - 1 to 4 PSI at sea level.

BOSCH 2 607 335 037 Power Tool Battery

Images	Type	Voltage	Capacity	Length(mm)	weight	Colour	Price
Code: TBS011	Ni-Cd	9.6V	1500mAH	108.66x53.00x104.70	575.51g	Black	£22.54
Code: TBS012	Ni-Cd	9.6V	1700mAH	108.66x53.00x104.70	612.36g	Black	£23.61
Code: TBS013	Ni-Cd	9.6V	2000mAH	108.66x53.00x104.70	652.05g	Black	£25.40
Code: TBS014	Ni-MH	9.6V	2200mAH	108.66x53.00x104.70	652.05g	Black	£25.40
Code: TBS015	Ni-MH	9.6V	3000mAH	108.66x53.00x104.70	685g	Black	£34.01

• 1 year warranty, 15 Days Money Back.
• 100% Brand new with high quality Rechargeable Battery.
• 100% Secure Shopping Guarantee.
• Payment Methods : Check, SEC, Paypal, Bank Transfer.
• Shipped out within 0.5-10 hours at Office time.
• Receive your item in 1-5days.