4-Slot 18650 Battery Holder – Versatile Power for Your DIY Projects
Need a reliable power solution for your next DIY build? This set of two 18650 battery holders, each featuring 4 slots, gives you the flexibility to configure your power supply exactly how you need it. Whether you require higher voltage in series or extended runtime in parallel, these holders allow you to adapt your setup without needing complex hardware changes.
Note: 18650 batteries are not included. Please use only Li-ion 18650 cells and ensure you check the polarity before installation.
Why choose this set? (Key Advantages):
- Two holders per pack — Ideal for dual-battery projects or keeping a spare on hand without needing a separate order.
- 4 slots per holder — Mount 4 x 18650 cells simultaneously to achieve up to 14.8V in series from a single unit.
- Series or parallel, you decide — Easily adapt your voltage or capacity to suit your project’s specific power requirements.
- Simple installation — The pre-wired leads allow for quick connection via soldering or terminal blocks.
- Compact design: 66 x 75 mm — Fits easily into custom enclosures or space-constrained prototypes.
- Stable metal contacts — Designed to hold batteries firmly in place, ensuring consistent electrical contact throughout use.
Details and Performance
Each 18650 holder in this set is manufactured from durable plastic with high-quality metal contacts that resist vibration and repeated handling. Measuring 66 mm x 75 mm, they are easy to integrate into any build, from breadboard prototypes to finished products. By connecting both holders, you can create an 8-cell configuration, providing up to 29.6V in series or doubled capacity in parallel.
| Parameter | Value / Detail |
|---|---|
| Product Type | 18650 Battery Holder |
| Slots per holder | 4 slots |
| Nominal voltage per cell | 3.7V |
| Max series voltage (1 holder) | 14.8V (4 x 3.7V) |
| Compatible battery type | 18650 Li-ion |
| Configuration | Series or Parallel |
| Holder dimensions | 66 mm x 75 mm |
| Material | Durable plastic with metal contacts |
| Wiring | Flying leads (ready for soldering or terminals) |
| Integrated protection | No (external BMS recommended) |
| Quantity | 2 x 18650 battery holders (4-slot) |
Package Contents
- 2 x 18650 Battery Holder – 4-slot (batteries not included)
Frequently Asked Questions
Which batteries are compatible with this holder?
These are designed exclusively for Li-ion 18650 cells (18 mm diameter, 65 mm length). Other formats such as 14500 or 21700 will not fit.
Can I connect the two holders together?
Yes. When connected in series or parallel, the two holders can form an 8-cell pack, allowing for up to 29.6V in series or doubled capacity in parallel.
What is the practical difference between series and parallel?
In series, the voltages add up (4 cells x 3.7V = 14.8V), while the capacity remains that of a single cell. In parallel, the voltage remains 3.7V, but the total capacity increases based on the number of cells connected.
Does the holder include short-circuit protection?
No. This is a simple mechanical and electrical holder without an integrated BMS. For safety, we recommend using an external Battery Management System to protect against overcharging, deep discharge, and short circuits.
Do I need to solder the wires?
The holders come with flying leads. You can solder them directly to your PCB or use terminal blocks, depending on your project requirements.
Photo Gallery
Reviews
There are no reviews yet.