Decision guide / For people choosing portable power
Compare power capacity and output as separate constraints.
A capacity figure alone cannot establish whether a device can power a particular load or how long that load will run.
Work through the question.
- Shortlist exact regional models and read the stated capacity and output separately.
- Confirm your load, startup demand, connector, charging source and regional electrical requirements.
- Use measured real-use consumption for runtime planning; do not turn a marketing capacity into a tested result.
Start with checked examples.
Anker Prime 27,650mAh Power Bank (A1340)
A roughly 100Wh USB power bank with a maker-listed 250W combined output ceiling and a 140W maximum output claim; useful when comparing multi-device USB charging against larger AC stations.
- model: A1340
- capacity mAh: 27650
- energy Wh: 99.54
- energy note: 99.54Wh is listed on Anker New Zealand product page for A1340.
No device charging, runtime, heat, durability, or travel-rule test was performed.
Anker Prime 27,650mAh Power Bank, 250W Multi-Device Fast Charger — Anker UK · United Kingdom / official Anker product page · checked 2026-10-09
Anker Prime 27,650mAh Power Bank (250W) — Anker New Zealand · New Zealand / official Anker product page · checked 2026-10-09
UGREEN Nexode Power Bank 25,000mAh 200W (35525)
A 90Wh three-port USB power bank with separately listed port ceilings and a 200W product headline; the per-port and combined limits should be checked against the intended device mix.
- model SKU: 35525
- capacity mAh: 25000
- energy Wh: 90
- ports: Two USB-C and one USB-A are listed.
No independent output, runtime, or weight test was conducted.
UGREEN Nexode Power Bank 25,000mAh 200W — UGREEN UK · United Kingdom / official UGREEN product page · checked 2026-10-09
Baseus Blade 2 Smart Power Bank 65W 12,000mAh (P10063801323-00)
A 46.44Wh slim USB-C power bank with two USB-C outputs and a 65W single-port ceiling; the page describes a 45W plus 20W split when both outputs are used.
- model SKU: P10063801323-00
- capacity mAh: 12000
- energy Wh: 46.44
- ports: Two USB-C ports.
No independent output, runtime, device compatibility, or availability check beyond the dated page read was performed.
Blade 2 Smart Power Bank 65W 12,000mAh — Baseus · United States / official Baseus product page · checked 2026-10-09
Make the next move concrete.
Use the free tool to choose the relevant evidence and save the result with its sources and unknowns. Your local constraints stay on your device.
Compare portable power ↗Original desk-research analysis. Source facts are not independent product tests, confirmed supplier quotations or evidence of customer demand.