QSSUNشحن وتركيب مجاني لأول طلب
kW vs kWh in Solar Systems
A kilowatt (kW) is power: how much is drawn or produced at one instant. A kilowatt-hour (kWh) is energy: power multiplied by time.
Products in stock
In depth
Inverters are rated in kW because they cap instantaneous load; batteries are rated in kWh because they set how long you run.
Example: a 5kW inverter with a 10kWh battery can serve a 5kW load for about two hours, or a 1kW load for ten hours.
A common mistake is treating a bigger inverter and a bigger battery as interchangeable; they are different numbers and must be sized together.
Related products with specs and prices
| Product | Specifications | Price (SAR) |
|---|---|---|
| QSSUN AGM BATTERY 12V 7AH - UPS بطارية كيوصن 7 امبير | 12V | 45 |
| QSSUN AGM BATTERY 12V 9AH - UPS بطارية كيوصن 9 امبير | 12V | 58 |
| AGM BATTERY 12V 12AH - UPS بطارية كيوصن 12 امبير | 12V | 81 |
| QSSUN AGM BATTERY 12V 18AH - UPS بطارية كيوصن 18 امبير | 12V | 92 |
| QSSUN AGM BATTERY 12V 20AH - UPS بطارية كيوصن 20 امبير | 12V / 20Ah | 150 |
| بطاريه SCB جل 12 فولت 26 امبير فيتنامي | 12V / 26Ah | 183 |
| بطارية كيوصن للكراسي المتحركة 33 امبير AGM BATTERY 12V 33A | 12V / 33Ah | 191 |
| بطاريه NPP جل 12 فولت 26 امبير فيتنامي | 12V / 26Ah | 200 |
Common mistakes to avoid
- Comparing amp-hours only and ignoring voltage, ending up with four times less energy than needed
- Discharging lead acid below 50%, which cuts life to less than half
- Picking a bank that does not match the inverter voltage, so charging fails or runs inefficiently
- Thin cable or a long run between bank and inverter, causing voltage drop and lost power
- Mixing new and old packs, or different capacities, on the same bus
Next step
Send your load list and required hours over WhatsApp, or use the on-site system calculator to size the battery bank and array.
Technical advice is free, and the recommendation is based on your real consumption, inverter voltage and installation location rather than on the largest battery in stock.
Frequently asked questions
Which number decides if my AC runs?
Inverter kW decides whether it can start; battery kWh decides for how long.
Does more battery raise power?
It does not raise the inverter's peak power, only runtime.
Related pages
Internal page ID: EN-GUIDE-000011