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We've been shiping these 18650 cells for a while now, and the 3500mAh variant is what most buyers go with for power tools and flashlights—it's a solid balance of runtime and discharge rate, though the 4200mAh option has tighter tolerances if you need max capacty, but it's not suited for high-drain applictions above 5C continuous.
Documentation is straightforward: each batch comes with a COA and HPLC trace if requested, and we usually have stock on the 3000mAh and 3350mAh models, but confirm lead time for the 4200mAh as it's roughly 20 days or so. Payment is typically 30% deposit with balance before shipment, and our company can do T/T or L/C at sight for larger orders.
Actually, one thing buyers don't always think to ask is that the flat top cells are easier to handle in battery packs with spot welding, while button tops add about 1mm in height and are better for spring-loaded contacts in flashlights. We've had a few clients who ordered the wrong terminal type and had to swap, so just double-check your device specs.
Shipping is via sea freight for bulk orders—MOQ is 500 pieces per capacity variant—and we can arrange DDP if needed, though that adds about a week to transit. Air freight is possible for samples (usually 50 units or so), but the cost per cell jumps significantly.
It basically comes down to matching the cell to your discharge requirments, and we've got the data sheets and cycle life curves.
We offer five capacity options: 3000mAh, 3350mAh, 3500mAh, 3800mAh, and 4200mAh. The higher capacities typically weigh a bit more, around 50g, and have a slightly lower max discharge rate.
No, they ship as bare cells with flat top or button top terminals. We can add a PCB protection circuit as an optional upgrade if you need overcharge or short-circuit protection.
We can provide MSDS, UN38.3 test reports, and CE/RoHS certificates upon request. Just let us know what your compliance team needs for shipping or product integration.
The MOQ is typically 1000 pieces for standard capacity models. For custom specs like a specific protection circuit or labeling, we may require a higher MOQ, so it's best to check with us.
Store them in a cool, dry place at about 20°C to 25°C, ideally at a 40-60% charge level. Avoid temperatures above 45°C or below -20°C, as extreme temps can shorten cycle life.
