Guides
Notes on Qi2, heat and capacity.
How the profiles differ, what the extra wattage costs, and how capacity behaves on a magnetic pack. Written from specification sheets, not from a brochure.
Guide indexWIRELESS CHARGER SUPPLY
2Guides published
Qi2Profiles explained
mAhCapacity maths
1Reply to a question
2026-10-22Qi2 vs Qi2.2: what the 25W upgrade changes for accessory brands
Qi2 and Qi2.2 compared: what the jump to 25W requires from the phone, the adapter and the heat path, and what it changes for an accessory brand.
4 min read2026-10-22Magnetic power bank capacity: 5000 mAh vs 10000 mAh for retail5000 and 10000 mAh magnetic power banks compared: watt hours, delivered capacity, charges per pack, thickness and the retail maths behind each size.
3 min readStuck on one number?
Send the phone list and the tariff you have in mind, and the answer comes back with the reasoning shown.