If you’re sourcing batteries in bulk for cordless screwdrivers or small drills, the 18650 3.7V 2200mAh lithium battery is still one of those specs that simply makes sense.
It’s not a new format. It’s not trendy.
But it’s been used in power tools for years, and that matters when you’re buying at scale. The supply is stable, the performance is predictable, and most pack designs around it are already proven.
Why buyers still choose this cell
From a wholesale point of view, this cell is easy to work with.
It’s widely available, the consistency is good, and it doesn’t create surprises during assembly. Most standard BMS solutions already support it, so development stays simple. For long-term projects, that kind of reliability is often more important than chasing the latest spec.
That’s why many tool brands keep using this cell even when they update the tool itself.
7.4V battery packs (2S setups)
For 7.4V tools, the common builds are:
- 2S1P — 2200mAh
- 2S2P — 4400mAh
Nominal voltage is 7.4V, fully charged at 8.4V.
This is the setup you see most often in household tools. It keeps the pack compact, costs stay under control, and runtime is enough for everyday work. It’s widely used in cordless screwdrivers and small drills, especially for wood, plastic, and light metal tasks.
11.1V battery packs (3S setups)
When more power is needed, projects usually move to 3S:
- 3S1P — 2200mAh
- 3S2P — 4400mAh
Nominal voltage is 11.1V, with 12.6V at full charge.
Compared to 7.4V, tools feel stronger and more responsive. These packs are often used in high-torque screwdrivers, entry-level impact drills, or tools that need to run harder and more frequently without overheating.
Who this solution is for
This 18650 3.7V 2200mAh setup works well for:
- Power tool manufacturers
- Battery pack assemblers
- OEM / ODM projects
- Tool brands and distributors
- Battery wholesalers supplying overseas markets
It’s flexible enough to support both entry-level and higher-power product lines using the same base cell.
Let’s talk supply
If you’re planning bulk purchases or a long-term tool project, this is a spec that rarely causes trouble. We support wholesale orders, OEM pack configurations, and ongoing supply for overseas customers.
Contact us to discuss pricing, MOQ, and lead times.
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