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What Does 51.2V 100Ah Mean?
51.2V is the nominal voltage of a 16-cell LiFePO4 pack and 100Ah is its charge. Energy = 51.2 x 100 / 1000 = 5.12kWh.
Products in stock
In depth
This size is common as a scalable building block: two units give about 10.24kWh, three about 15.4kWh, and so on.
The practical advantage is flexibility - start with one unit and expand later, provided units are the same model and similar age to avoid imbalance.
Usable energy from one unit is around 4.6kWh, enough for essential loads for four to five hours.
Related products with specs and prices
| Product | Specifications | Price (SAR) |
|---|---|---|
| (5 كيلو واط) بطارية ليثيوم 5KWH - 51.2V | 51.2V / 5kWh | 3050 |
| بطارية ليثيوم فيتشي 51.2V 100Ah – سعة 5.12 كيلوواط | 51.2V / 100Ah / 5.12kWh | 3400 |
| بطارية ليثيوم 5KWH - 51.2V (5 كيلو واط) | 51.2V / 100Ah / 5kWh | 3900 |
| بطارية ليثيوم Swift بقدرة 5.12 كيلو جهد 48 – 51.2V سعة 100Ah | 51.2V / 100Ah / 5.1kWh | 4000 |
| بطارية ليثيوم (Go Green) 51.2 فولت 200 أمبير بقدرة 10 كيلووات | 51.2V / 200Ah / 10kWh | 5000 |
| بطارية ليثيوم SUN5 بقدرة 7.68kW بجهد 51.2V و150Ah | 51.2V / 150Ah / 7.68kWh | 5100 |
| كنترول البطارية Deye BOS-G PRO سعة 5.12 كيلوواط 100أمبير 51.2 فولت هاي فولتاج | 51.2V / 100Ah / 5.12kWh | 5300 |
| (10 كيلو واط) بطارية ليثيوم 10KWH - 51.2V | 51.2V / 10kWh | 5550 |
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
How many units for 15kWh?
Three 51.2V 100Ah units give about 15.4kWh nameplate.
Can they be wired in series?
Finished 51.2V packs are normally paralleled only; series needs a model designed for high voltage.
Related pages
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