شحن وتركيب مجاني لأول طلب
18kWh 51.2V Battery
This guide covers 3 18kwh 51.2v battery actually in stock, priced from 7100 to 8500 SAR. A 18kWh pack delivers about 16.2kWh usable in lithium chemistry, and that is the figure that sets runtime. 51.2V is the true nominal of a 16-cell LiFePO4 pack. It mounts directly on 48V inverters and is often marketed as 48V.
Products in stock
Available specifications and prices
Prices are in Saudi riyals as shown on the product pages, and specifications are taken from the product data itself.
| Product | Specifications | Price (SAR) |
|---|---|---|
| بطارية ليثيوم (بقدرة 16 كيلو) Go Green فولت 51.2 | 51.2V / 314Ah / 16kWh | 7100 |
| بطارية Swift ليثيوم 340 أمبير – 51.2 فولت (17.4 كيلو واط) | 51.2V / 340Ah / 17.4kWh | 7800 |
| بطارية EMPOWER ليثيوم 340 أمبير – 51.2 فولت (17.4 كيلو واط) | 51.2V / 340Ah / 17.4kWh | 8500 |
Expected runtime
Formula: usable energy divided by load. Figures are estimates and drop 10-15% in high heat or at high discharge current.
| Load | Expected runtime |
|---|---|
| 0.5 kW | 32.4 h |
| 1 kW | 16.2 h |
| 2 kW | 8.1 h |
| 3 kW | 5.4 h |
| 5 kW | 3.2 h |
Inverter compatibility
51.2V is the true nominal of a 16-cell LiFePO4 pack. It mounts directly on 48V inverters and is often marketed as 48V.
Advantages
- Up to 90% of nameplate capacity is usable
- Several times the cycle life of lead acid
- Lower weight and volume per kWh
- Built-in BMS for protection and cell balancing
Points to consider
- Higher upfront cost than lead acid
- Requires an inverter with a lithium charge profile or correct manual settings
- The BMS may derate charge current in extreme heat
Installation and usage considerations
Mount in shade with airflow around the enclosure, set charge and cut-off voltages to the manufacturer's figures, and never mix lithium packs of different ages or capacities on the same bus.
Use cable sized for the current with a short run between bank and inverter, plus a breaker or fuse on the positive terminal. Thin cable and long runs are the number-one cause of poor performance wrongly blamed on the battery.
How to pick the right option
Start from daily kWh and the hours you need, then divide by allowed depth of discharge (0.9 lithium, 0.5 gel) to get required nameplate capacity.
Fix the system voltage from your inverter, then compare options on price per usable kWh rather than price per unit.
Frequently asked questions
How long does a 18kWh battery run?
Usable energy is about 16.2kWh, roughly 16 hours at a 1kW load and about 8.1 hours at 2kW.
Will a 51.2V battery match my inverter?
51.2V is the true nominal of a 16-cell LiFePO4 pack. It mounts directly on 48V inverters and is often marketed as 48V.
What is the current price range?
Options in this class start at 7100 SAR and reach 8500 SAR; the final price is shown on each product page.
Is technical advice available before buying?
Yes - send your load list and required hours over WhatsApp and we size the bank at no cost.
Related pages
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