DIY Mini Power Bank 1×18650, White – Small, Lightweight, Pocket-sized

Build your own ultra-lightweight backup power on the go. This compact case serves as a chassis for a single 18650 battery cell. It functions as a miniature power bank for emergency phone charging (MP3, GPS, and other small electronics), or as a standalone USB charger for Li-Ion cells. Simple and fashionable design. Fast and safe charging via USB cable (not included).

Features and Functions:

  • 2-in-1 Power Bank & Charger: Insert the cell, connect it to the power supply via Micro-USB, and charge the battery. Or plug your phone into the standard USB port and draw power on the move.
  • Capacity in Your Control: The final capacity of the power bank depends entirely on the capacity of the cell you insert (e.g., with a 3500 mAh cell, you get an excellent emergency backup).
  • Simple Solderless Assembly: Simply insert the cell into the case (pay close attention to the correct positive and negative polarity) and firmly snap the plastic cover shut.

Technical Specifications:

  • Input: 5V DC (Micro-USB)
  • Output: 5V DC (USB-A)
  • Compatibility: 1× 18650 Li-Ion cell (3.6V / 3.7V)
  • Dimensions: 9.5 × 2.5 × 2 cm
  • Weight: 24 g (without battery)
  • Package Contents: 1× plastic DIY case with electronics

⚠️ Important Notice: This is a DIY kit. The 18650 battery cell and charging cables are not included in the package. For proper functionality, the cell must be purchased separately – we recommend choosing from our range of 18650 Li-Ion cells.

mivvy ENERGY

Features

Dimensions
9,5 x 2,5 x 2 cm
Colour
White
Type
18650 Li-Ion
Port
USB A
USB micro
Package weight
0.02 kg

Specific References

EAN13
8595210330655
Grade 
Hana P. 05/31/2026

Recenze byla napsána na Heureka.cz

Celkové hodnocení:
Součástí powerbanky nejsou baterie. Bohužel baterie jsou atypické, zatím se mi je tedy nepodařilo koupit. Objednávat samotné baterie přes internet a platit dopravu se mi nechce. Powerbanka vypadá křehce. Přišla pootevřená, dalo mi práci ji zavřít, aniž bych něco ulomila. Ale vlastně to bylo zbytečné, protože nemám baterie a tedy jsem ji ještě nezapnula. Chtěla jsem lehounkou powerbanku, kterou bych mohla nosit denně s sebou (jinou, kvalitní, ale větší a těžkou na dovolenou mám). Kdyby vrácení nestálo další peníze, vrátila bych ji.

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