Direct answer
Start with the handsets your shop sells. Check the accessory's connector and protocol against model-specific manufacturer guidance, then use your own sales and replenishment records to decide stock cover.
Key takeaways
- Match accessory stock to the handsets on the same shelf.
- Brand recognition alone does not establish compatibility or sales performance.
- Count weeks of cover, not catalogue width.
An incompatible accessory can leave a shop with unsellable stock. Check it against the handset model before using margin or brand familiarity to justify an order.
Start from the handset shelf
Use this record for each candidate SKU. A manufacturer’s public fast-charge guidance, listed in Sources, specifies model-dependent cables and adapters; it is a compatibility reference, not a product recommendation or our test.
| Check | Record before ordering |
|---|---|
| Handset | Exact model and its published connector requirements: ___ |
| Cable | Both connector ends and documented capabilities: ___ |
| Charging protocol | Handset requirement and adapter/cable support: ___ |
| Compatibility evidence | Manufacturer document URL, model coverage and date: ___ |
| Safety and returns | Applicable market documentation, traceable model and agreed return terms: ___ |
Validate demand in your own shop
Compare sales and returns by SKU. Treat brand recognition as a reason to investigate demand, not proof that a line will outsell another.
Count cover, not SKUs
Weeks of cover = sellable units on hand ÷ average units sold per week, measured over a stated sales period. Example, assumed inputs: 24 sellable cables ÷ 8 sold per week = 3 weeks of cover. This is arithmetic, not a replenishment target.
Choose a target using your measured replenishment lead time and demand variation. If sales are zero or the SKU is new, this formula does not give a usable cover estimate.
Returns
Agree the return window and inspection process before ordering. Keep faults separate from compatibility mistakes when reviewing whether to reorder.
Frequently asked questions
Should a small shop stock every color of case?
Start with the handset models your shop sells and use sales by model and color to decide additions. Do not assume every catalogue variant needs shelf stock.
Are no-name fast chargers worth the margin?
Margin and a returns promise are insufficient. Ask for a traceable manufacturer and model, documented handset/protocol compatibility, and applicable market safety-compliance evidence. Hold the purchase if those checks cannot be completed; a fast-charge label alone is not evidence.
Sources
- Fast charge your iPhone — manufacturer cable and adapter requirements — Apple Accessed October 9, 2026.
