2PCS 18650 Battery Holder with Lead Wire Bundle 18650 Battery Storage Box Kit
Quick take
This 2-pack single-slot 18650 battery holder kit is designed for DIY builds that use one 18650 cell per holder. It includes red and black wires to make polarity identification and soldering easier, and the plastic case helps keep the battery seated. The main caveat is that the included leads are very thin, so it’s better suited for low-amperage projects than higher-drain motors.
Pros and cons
Pros
- Two single-slot holders, each built for a 3.7V 18650 cell
- Prewired with red and black leads for easier wiring and polarity matching
- Sturdy plastic housing that helps keep the battery firmly in place
- Compact size (about 76 x 21 x 20 mm per holder) with ~14 cm lead length
Cons
- Included wires are very thin, which can be limiting for higher-drain use cases
- Some setups may require replacing or supplementing the leads if you’re powering motors or other demanding loads
What buyers think
Buyer-review evidence points to a generally practical, easy-to-use battery holder for DIY electronics. Many users highlight the convenience of having wires already attached, plus a snug fit and good terminal contact when the 18650 is inserted. Several reviews also describe the plastic body as durable and not prone to breaking during normal project use. The most consistent limitation mentioned is the thinness of the included leads, with at least a couple of builders noting that performance may drop or require upgraded wiring for higher-drain components.
Who this battery holder is for
This kit makes the most sense when you want a simple, single-cell 18650 mounting and connection solution without designing a holder from scratch.
- DIY lights and electronics with modest power draw: If your circuit is mostly steady and low-amperage, the included wire leads are often enough.
- Battery-swapping projects: The single-slot design makes it easy to adapt gear that originally used disposable cells or another battery type.
- Projects where polarity clarity matters: Red and black wires help keep wiring mistakes less likely during soldering and installation.
- Experiment and prototyping builds: For science projects, maker experiments, and quick rewiring, the form factor is compact and convenient.
Who should avoid it (or plan for upgrades)
If your project involves higher current draw, treat this kit as a mechanical and connection convenience, not a guaranteed solution for demanding loads.
- High-drain motors or RC-style loads: Reviews suggest the thin included leads may not conduct enough for sustained higher-drain performance.
- Anyone who does not want to solder or modify wiring: Even though the leads are pre-attached, you may still want to replace them with thicker wire depending on your load.
Key features to understand
Single-slot, 18650-compatible design
The holders are made for one 18650 cell each (rated for 3.7V battery use), giving you a simple way to mount and connect cells in DIY electronics.
Built-in red and black leads
Each holder includes a lead wire bundle with red and black terminals. This helps with polarity identification during installation and makes soldering and connection more straightforward than bare metal contacts.
Compact plastic case for retention
The plastic housing is intended to keep the battery seated securely and protect the cell from movement. Several buyers also described the case as fairly durable for typical DIY handling.
Pros and cons, in plain terms
Why it’s a good buy
- You get two holders in one package, handy when building two-cell or two-device setups.
- Pre-attached wires reduce setup time and help avoid confusion over which terminal is which.
- The battery fits snugly, and the case design supports stable contact for common electronics.
The main tradeoff
The included leads are thin. If your project requires more current than a low-power circuit, you may need to swap in thicker wire to prevent voltage drop and related performance issues.
Price and availability
The listing shows a low current price relative to the list price, and the product is marked as available in the United States. For the most up-to-date cost and stock status, check the link below.
Verdict
Get this 2-pack 18650 battery holder kit if you’re building simple DIY electronics that run on a single 18650 and don’t demand heavy current. The prewired red and black leads, compact case, and snug fit make it convenient for prototyping and battery conversions. If you’re powering higher-drain components, budget time to upgrade the wiring or choose a holder kit intended for larger current loads.
FAQs
Does this kit include wires for both polarity connections?
Yes. Each holder includes red and black lead wires so you can identify polarity and connect the battery to your circuit.
How long are the included lead wires?
The lead cable length is listed at approximately 14 cm per holder.
Will these holders work for high-drain projects like motors?
The included leads are described as very thin by some buyers, and limited lead conductivity has been noted for higher-drain scenarios. For motor-style loads, you may need to replace or supplement the wiring with thicker wire.
What size are the battery holders?
Each holder is listed at about 76 x 21 x 20 mm (L x W x H).
How many batteries can you hold at once?
This package contains 2 single-slot holders, so you can hold two separate 18650 cells total if you use both units.
Specifications
| Product Title | 2PCS 18650 Battery Holder with Lead Wire Bundle 18650 Battery Holder 3.7V DIY Battery Storage Boxes Black Plastic Battery Case Kit |
|---|---|
| Category | Electronics > Household Batteries, Chargers & Accessories > Battery Holders |
| Brand | LBTODH |
| Manufacturer | LBTODH |
| Model Number | 2PCS-18650-BATTERY-HOLDER-3.7V |
| Item Weight | 0.01 Kilograms |
| UPC | 784136504570 |
| Voltage | 3.7 Volts |
| Reusability | Single Use |
| Unit Count | 2.0 Count |
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