Lithium vs Lead Acid Batteries

Comparison of Lead Acid & Lithium ion Batteries

To overcome limitations of VRLA and Lead Acid batteries researchers worked hard to invent better solution for energy storage in the field of batteries which is the need current age. Lithium emerged the modern day technology with its inherited characteristics in terms of high energy density, 100% efficiency, light weight, customization etc. Better load matching is its most suitable with renewable energy sources thus lithium is preferred over other conventional batteries.

Following are some of comparison to understand the difference:

Factors Lead Acid
(VRLA)
Lithium
(LFP)
Lithium over
Lead Acid
Required Energy Output(Wh) 240 240
Capacity 12V 40 Ah
@ 50 % DOD
12V 20 Ah
@100 % DOD
Charging Rate C/10 C/3

3 Times Faster

Time (Hr) 12 4
Operating Life (Years) 2.5 8

3 Times Longer

Cycle Life 50% DOD @ 25 Deg C >/600 >/4000

3 Times More

80% DOD @ 25 Deg C >/300 >/2000
C/10 @ 42 Deg C 50% No Effect
Theft Possibilty Yes No Safe
Dimensions Fixed Flexible Compact
Weight (Kg) 12.5 kg 2.5 kg

5 Times Less

Cost (Rs/over 8 Years) Product Cost 10500 10400

1/3 Times Lesser

Transportation 1500 100
Installation 1000 200
Total 13000 10700
Operational (per Cycle) 7.22 2.68