About this category
The 21700 size is a larger cylindrical size than 18650, and it appears on the company website in the 3.7V lithium family. The published title carries additional wording that this site transcribes but does not expand into a specification, because a title is not a specification sheet. A buyer considering 21700 should check the device's battery compartment and the charger first: a larger cylindrical size does not fit a compartment or a charger built for a smaller size, and that physical check matters more than any figure in a title.
Because the 21700 range on this site is narrow, buyers who need a range of cylindrical sizes should also look at the 18650 and 26650 pages and at the cylindrical battery guide, which explains how size names relate to one another without promising that any size can substitute for another.
Listing titles in this category
Each title below is transcribed exactly as published on the company website. A title is not a specification: please confirm the full specification, the quantity terms and the lead time for any title before you order.
| Listing title as published |
|---|
| 21700 4000mAh 10C |
How to use this page
Start from the size family, then check the chemistry family, then check the charger that the battery needs. Those three decisions, in that order, prevent the most common buying error in this trade, which is ordering a battery that fits the device but cannot be charged with the charger already in use.
When you enquire, quote the listing title exactly as it appears in the table above, add your quantity range, and ask the supplier to confirm the full specification, the quantity terms and the lead time before payment. A title that contains a figure in its wording is still only a title: please do not treat wording inside a title as a confirmed specification.
What to send with your enquiry
To get a useful answer first time, please include the following in your message. Every item on this list is a question for the supplier to confirm, not a claim made on this page.
- The battery size family you need (for example AA, AAA, 18650, 21700 or 26650) and the listing title exactly as published on this site.
- Your quantity range, so the supplier can confirm the quantity terms that apply to your order.
- For chargers, the plug style and the battery sizes the charger must serve.
- For fans, where the fan will be used — desk, clip-on, handheld or outdoor — and whether it must run while charging.
- Three questions to ask before you order: please confirm the full specification, please confirm the quantity terms, and please confirm the lead time for this listing.
Contact: Manager: Geely Zhang, telephone +8615975606040, email [email protected].
Planning reference for quantity and lead time
Orders in this trade are commonly discussed in the low thousands of pieces for standard cells, and lead times are commonly measured in weeks once a specification has been agreed. Those are trade planning figures, not this company's published policy: the company's own website does not publish a minimum order quantity or a lead time. Before you place an order, please confirm the quantity terms and the lead time that apply to your listing, in writing, and please do not treat this paragraph as a price or delivery promise.
Prices are not published on this site. Please ask for a quotation against the exact listing title, and please confirm the specification, the quantity terms and the lead time before payment.