This DIY 8×18650 Power Bank Case gives you a professional, safe enclosure to build a high-capacity portable charger — featuring a durable textured shell, a pre-installed PCB with digital LCD that shows real-time status, and convenient USB ports for charging and output. Designed for makers and repairers, it keeps your 18650 cells securely aligned, prevents shorting with protective insulation and clear assembly guidance, and presents a neat, compact finish that’s perfect for gifting or selling your own custom power banks. Easy to assemble, built for safety, and made to make your custom power bank look and perform like a pro — batteries not included.
| Product Type | DIY 8×18650 Power Bank Case (with pre-installed PCB & LCD) |
| Compatible Cells | 8 × 18650 lithium-ion cells (batteries NOT included) |
| Material | Durable ABS/PC plastic shell |
| PCB & Display | Pre-installed PCB with LED/LCD digital status display and charging indicators |
| Ports | Standard USB output and USB input (5V interface) |
| Color Options | Transparent (clear) and Solid (black/dark) variants |
| Assembly | DIY assembly required — follow polarity markings and instructions |
| Safety Notes | Includes insulation and polarity indicators; use matched 18650 cells and observe correct polarity. Batteries not included. |
| Weight (approx.) | Lightweight shell — depends on cells used (cells not included) |
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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