This document summarizes different types of batteries, including their characteristics and applications. It discusses vented lead acid batteries, sealed maintenance free batteries, and nickel cadmium batteries. It provides details on their typical lifespans, nominal voltages, charging requirements, and suitable applications. The document concludes with advice to think big, think fast, think first, but not to claim exclusivity over thoughts.

1. BATTERY
-B. Prasad
Chartered
Engineer
amieclub@gmail.com

2. TYPE OF BATTERY
 Vented / Flooded
Lead Acid
batteries
 Sealed
maintenance
free
batteries/Valve
Regulated Lead
Acid
 Nickel Cadmium
(Ni-cd) batteries

3. Lead acid battery

4. Battery cut view

5. Connection
36 V
12 V

6. Vented / Flooded Lead Acid Batteries-
two type
Tubular
 Normal life 8-10 years
 Nominal cell voltage is 2V/cell.
 first charge at 2.6 to 2.7 V/cell.
 Away from delicate electronic
equipments.
 It needs separate room/racks
with acid proof tiles for
installation
 regular maintenance to check
specific gravity, to add water
and acid
 initial charging take about 55
to 90 hours.
Plante
 normal life 15-20
years.

7. VRLA/SMF type Lead acid
battery
 Being sealed, these batteries do not emit
any fumes
 Normal life 3-5 years
 Nominal cell voltage is 12V/cell.
 Float voltage 13.8 Volts
 SMF batteries should not be left in totally
discharged state more than 72 hrs.

8. Nickel Cadmium Batteries (Ni-
Cd)
 Normal service life is 20-25 years.
 Nominal cell voltage is 1.2 V/cell
 Initial cost may be approximately three times
 Used in hazardous environment such as
chemical, fertilizer, cement industry.
 Batteries occasionally demand boost
charging, 1.4 V/cell

9. APPLICATION OF BATTERY
 UPS
 Battery charger in switchgear
 Inverter
 Automobile
 Solar plant
 Solar light

10. ACT FAST AND INITIATE
FIRST
 बड़ा सोचो
 तेजी से सोचो व
 सबसे पहले सोचो
 िवचारो पर िकसी का
 एकािधकार नही होता.
---- धीरभाई अमबानी

11. THANK YOU