Criteria for DC batteries selection :Battery Type and technology(lead acid or lithium ion) ,Battery Design form(Tubular Plate , Flat Plates), Standard Tests , Design life or number of cycles, Low internal resistance: the best is the lowest, High Charging Capabilities, Battery efficiency must not be less than 85%, Allowable average DOD not more than 50%

3. • To select the proper and best DC batteries for
solar applications
• To select the proper and best off Grid inverter
for solar applications
• To select the proper and best PV solar Panels
for solar applications
• To select the proper and best DC and AC surge
arrestors for solar applications

4. SEALED (VRLA), [ Gel type or AGM Type] ..select for PV solar
Application
Lead Acid
Note: Lithium- ion is better than lead Acid but high cost
 Tubular Plate (Best)
Flat Plates
Note: Select Flat or Tubular Plate but Tubular is best for
bridging times of 1h and longer, tubular plate batteries are
more economical.

5. 2.3
 EN 50 272-2.
 IEEE 535-1986
 IEC 60 896-1
 DIN (Technical specs), IEC 60896-11, EN 50272-2 and ISO
9001:2000.
 IEC 61427-1
 IEC 61427 and IEC 60896-21.
- AGM
- GEL
Note: Gel is better than AGM but AGM is better for high start current

8. Solar battery technologies: Lead acid

9. Solar battery technologies: Lead acid

10. Solar battery technologies: Lead acid
BAE Battery Brand

11. Next Lecture

12. References