AC Wall Charger WS-CDZ-21KW With Screen

A simple way to explain to customers:

• kWh (battery): How long it can run when the sun is gone.
• kW (rated power): How many appliances/machines can run at the same time.
• Panels (number of 670W pcs): How fast you can recharge the batteries each day.

So:

• Smaller models (40-60 kWh, 20-30 kW): Single business or small compound.
• Mid models (80-100 kWh, 40-50 kW): School, resort, or barangay center.
• Big models (215-261 kWh, 100-110 kW): Whole small community or industrial site.

Ask the customer:

1. What do you want to power?

   List appliances and their wattage (AC, ref, freezer, pump, computers, etc.).

2. How many hours per day and during brownouts?

   More hours needed → higher kWh.

3. What's the maximum they might run at the same time?

   Higher simultaneous load → higher kW.

4. Is this for backup only or daily off-grid use?
   • Backup only: can choose smaller kWh if outages are short.
   • Off-grid: usually 15–30 kWh models.

Rule of thumb for the Philippines:

• Basic rural home (no AC) – 5 kWh or 10 kWh
• Middle-class home with 1–2 AC units – 10–20 kWh
• Large house / small business – 20–30 kWh
• Resort, small factory, island microgrid – 20–30 kWh (maybe multiple units)