Solar Battery Sizing for Different Applications: Home, Farm, Telecom, RV

Every application has unique energy patterns and backup needs. Here is sizing guidance for the most common solar applications.

Residential Home

• Small (2 people, no AC): 48V 200Ah = 9.6kWh usable
• Medium (4 people, some AC): 48V 400Ah = 19.2kWh usable
• Large (6+ people, full AC): 48V 800Ah = 38.4kWh usable

Agricultural Farm

Typical: irrigation pumps, refrigeration, electric fencing. Size for 2-3 day autonomy.

Example: 3kW irrigation, 6 hrs/day = 18kWh/day. 2-day autonomy = 24x CHISEN OPzV2-300 (48V 600Ah).

Telecom BTS Site

Typical: 2-5kW continuous, backup 4-8 hours per SLA.

Example: 3kW BTS, 8-hour backup: 24x CHISEN OPzV2-800 = 48V 800Ah.

RV and Marine

Typical: 500-2,000Wh/day. Use 12V or 24V AGM or GEL batteries.

Example: 1,000Wh/day, 2-day autonomy: 2x 12V 200Ah in series = 24V 200Ah.