Why are portable power stations more valuable than ordinary chargers?

1. Battery technology and cost differences

· Ordinary power banks:

Mostly use 18650 ternary lithium batteries or polymer lithium batteries, which are low in cost and high in energy density, but have a short cycle life (usually 200-500 times) and relatively low safety (higher risk of thermal runaway).

· Portable power stations:

Generally use lithium iron phosphate (LFP) batteries, which are more expensive but have obvious advantages:

· Safety: High temperature resistance, not easy to catch fire and explode, suitable for complex environments.

· Long life: Cycle charge and discharge can reach more than 2,000 times, and the long-term use cost is low.

· High current support: Can withstand higher power output, suitable for driving high-power devices.

2. Output power and compatibility

· Ordinary power banks:

The output power is usually ≤20W (USB-C PD fast charging), which can only support low-power devices such as mobile phones and tablets, and most of them only have USB interfaces.

·Portable power station:

·High power output: such as 300W AC inverter output, which can drive rice cookers, projectors, drones and other devices.

·Multi-interface design: including AC socket (220V/110V), USB-A/C, DC car charger, etc., suitable for powering multiple devices at the same time.

·Sine wave inverter technology: provides stable power to avoid equipment damage (ordinary power banks do not have this function).

3. Capacity and endurance

·Ordinary power banks:

The capacity is usually below 10,000mAh (about 37Wh), which only charges mobile phones a few times and cannot support long-term power demand.

·Portable power station:

The capacity is mostly 204.8Wh~256Wh (about 5.5 times that of 10,000mAh power banks), which can support:

·Mobile phone charging 20 times+

·Laptop working 8 hours+

·Small refrigerator running 12 hours+

·Outdoor lighting all night long.

4. Safety design and protection level

· Ordinary power bank:

Basic protection (overcharge, over discharge, short circuit), but lack of balanced charging, temperature control and other mechanisms, long-term use may cause safety hazards.

· Portable power station:

· BMS battery management system: real-time monitoring of voltage, current, temperature, providing 9-fold safety protection (such as overvoltage, overcurrent, reverse connection, balancing, etc.).

· Extreme environment adaptability: IP67 waterproof and dustproof, resistant to low temperature (-20℃) and high temperature (60℃), suitable for outdoor rain, snow, desert and other harsh conditions.

5. Material and structural complexity

· Ordinary power bank:

Simple structure, mostly plastic shell + circuit board, light weight but poor protection.

· Portable power station:

· Metal or high-strength plastic shell: anti-fall and wear-resistant, some models are equipped with anti-slip handles or handles.

· Heat dissipation design: fan + heat sink / aluminum alloy body to ensure stable operation under high load.

· Additional functions: such as LED power display, solar charging input (panel required), multi-device fast charging, etc.

6. Certification and compliance costs

· Ordinary power banks:

Only need to pass basic safety certification (such as CCC, FCC), and some cheap products do not even have certification.

· Portable power stations:

Need to pass more stringent international certification, such as:

·UN38.3 aviation certification (can be carried on board)

·IEC62368 (electronic equipment safety standard)

·CE/FCC/UL and other regional certifications to ensure global compatibility.

7. Applicable scenarios and added value

·Ordinary power banks:

Only for emergency charging, single scenario (such as travel, daily power replenishment).

·Portable power stations:

·Outdoor camping: Power electric baking trays, ambient lights, and speakers to enhance the experience.

·Home emergency: Ensure the operation of routers, monitoring, and medical equipment during power outages.

·Professional use: film and television shooting, surveying and exploration, mobile office, etc.

·Green energy: Sustainable charging with solar panels, high environmental value.