Convert mAh to Wh
Wh ≈ mAh × V ÷ 1,000
Use the nominal voltage printed on the battery or stated in the model specification.
Written CairoVolt Warranty Delivery Within Egypt
Compare Wh energy, output power, and device compatibility before relying on an option during a power cut, then review delivery information for Port Said.
Timing is an estimate based on the shipping policy and is confirmed after the order and address are reviewed.
Shipping is free from 3,700 EGP, and delivery covers eligible addresses across Port Said, including Port Said City, Port Fouad.
Start with your device requirements, then check the model page for current price and availability before ordering to Port Said. mAh alone does not determine charge count, and wattage alone does not guarantee maximum speed.
Compare Wh capacity, output power, ports, and weight before choosing a model.
Compare optionsMatch per-port power and PD or PPS support to your phone, tablet, or laptop.
Compare optionsChoose the connectors, charging rating, data support, and length you need.
Compare optionsCompare energy in watt-hours (Wh), because mAh values can be stated at different nominal voltages. Use the model label’s Wh value when available; otherwise calculate an approximation with its published nominal voltage.
Wh ≈ mAh × V ÷ 1,000
Use the nominal voltage printed on the battery or stated in the model specification.
Usable Wh ≈ Wh × 0.65–0.80
The 65%–80% range is an illustrative assumption only; the model, voltage, cable, and device change the result.
Charges ≈ usable bank Wh ÷ device Wh
The result is an approximate energy equivalent, not a guaranteed number of full charges.
| Nominal-capacity example | Theoretical energy | Estimated usable energy |
|---|---|---|
| 10,000 mAh @ 3.7 V | ≈ 37 Wh | ≈ 24–30 Wh |
| 20,000 mAh @ 3.7 V | ≈ 74 Wh | ≈ 48–59 Wh |
Model-agnostic estimate: a 5,000mAh phone battery at 3.85V is about 19.25Wh theoretically. In the first example, that gives roughly 1.2–1.6 full-charge equivalents. Use during charging, battery condition, heat, and device efficiency change the result.
A phone needs a compatible charger and cable; a laptop needs USB-C PD at a power level it accepts; and a router requires the correct voltage, polarity, and connector. Do not connect an appliance to a power bank unless its manufacturer explicitly supports that use.
Watts (W) describe potential charging power, while Wh describes energy quantity. Also match the device protocol, per-port output, and cable; the exact model page is the reference for current specifications.
Estimated 2–3 business days. This is an estimate; CairoVolt confirms the date after reviewing the order.
Shipping to Port Said costs 85 EGP for orders under 3,700 EGP; orders of 3,700 EGP or more ship free under the shipping policy.
Yes. Cash on delivery is available for eligible orders and is confirmed during order review.
The warranty and return terms are published on the policy pages and can be reviewed before ordering.
Use energy in Wh rather than mAh alone: approximate Wh = mAh × nominal voltage ÷ 1,000, then allow for conversion loss as an estimate. Use the model label's Wh value when available.
Yes, but the device controls what it accepts. Charger output, protocol, and cable must all match the device; a larger wattage label alone does not guarantee a faster result.