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iMini iMini V3 Review: Best Budget 510 Battery Under $20?

Is the iMini iMini V3 worth $15.98? Our hands-on review covers performance, build quality, and how it compares to alternatives.

By The Vaper's Guide Team
(Updated January 4, 2026)
iMini V3

iMini

iMini V3

4.1
$15.98
Check Price

Our Verdict

The iMini V3 delivers impressive features for its price point. Four voltage settings, magnetic connection, and preheat functionality typically require spending more. The ultra-compact design maximizes concealability, and the included cartridge means you can start using it immediately. Budget buyers seeking features over brand recognition will find the iMini V3 punches well above its weight class.

Pros

  • Exceptional value under $20
  • Four voltage settings
  • Ultra-compact, palm-concealable design
  • Magnetic cartridge connection
  • Includes 0.5ml cartridge
  • Preheat function

Cons

  • 500mAh limits daily capacity
  • 12mm max cartridge width
  • Limited brand recognition

Introduction

The iMini V3 targets the intersection of maximum features and minimum price. At under $20—including a 0.5ml cartridge—it offers four voltage settings, magnetic connection, and preheat functionality that typically require higher investment.

The tradeoff is brand recognition; iMini lacks the reputation of established names. But for value-focused buyers who prioritize function over labels, the V3 delivers genuine capability.

Design and Concealability

The iMini V3 prioritizes compact dimensions above all else. The result is a device that disappears in a closed palm, making it one of the most concealable 510 batteries available.

The magnetic connection simplifies cartridge handling. A ring adapter threads onto your cartridge once, then the magnetized cartridge snaps into place. Quick, secure, no threading required.

The 12mm maximum cartridge width accommodates most standard cartridges but may not fit oversized options. Check your preferred cartridge diameter before purchasing.

Four Voltage Settings

The V3 offers four distinct voltage/temperature levels:

ColorVoltageTemperatureCharacter
Green2.8V392FFlavor focus
Blue3.2V410FBalanced
Yellow3.8V428FMore vapor
Red4.2VMaxMaximum output

This range covers most preferences. Three-click cycling moves through settings, with LED color indicating current level.

Complete Kit

The V3 package includes:

  • iMini V3 battery
  • 0.5ml 510 cartridge
  • Magnetic connector
  • Micro-USB cable
  • User manual

The included cartridge means you can start using the device immediately if you have oil to fill it. This complete package adds value versus batteries sold alone.

Preheat Function

Double-clicking activates preheat mode for thick oils. The lower-temperature cycle warms material before full heating, improving performance with viscous concentrates.

Battery Considerations

The 500mAh capacity provides moderate use. Light users may get through a day; heavy users should plan on charging. The compact size necessitates this tradeoff—larger batteries would require a larger device.

Micro-USB charging is functional but dated. Charge time runs approximately 90 minutes from empty.

Brand Perspective

iMini lacks the established reputation of brands like Yocan or Vessel. This means:

Pros: Lower pricing, no "brand tax"

Cons: Less certain long-term support, less documented reliability history

For users comfortable evaluating products on specs rather than brand name, the iMini offers genuine value. Those preferring established brand backing should consider alternatives.

Who Should Buy the iMini V3

Maximum budget buyers: The feature set at this price is genuinely impressive.

Concealability priority: Few devices match the V3's compact dimensions.

Backup seekers: The low cost makes it viable as a backup or travel device.

Feature-over-brand buyers: Those who evaluate specs over labels will appreciate the value.

Final Verdict

The iMini V3 delivers more features than its price suggests. Four voltage settings, magnetic connection, preheat functionality, and included cartridge create genuine value for budget-conscious buyers.

The tradeoffs are predictable: limited battery capacity, lesser-known brand, and maximum cartridge width restrictions. Users comfortable with these limitations will find the V3 punches above its weight class.

For those prioritizing brand recognition and proven track records, established alternatives make sense. For those prioritizing value and features, the iMini V3 earns serious consideration.

Specifications
Battery Capacity500mAh
Voltage Settings2.8V, 3.2V, 3.8V, 4.2V
Temperature Settings392F, 410F, 428F
Max Cartridge Width12mm
Connection510 magnetic
ChargingMicro-USB
Includes0.5ml cartridge

Frequently Asked Questions

Is the iMini iMini V3 worth it?

Yes, with a 4.1/5 rating, the iMini iMini V3 offers solid value at $15.98. The iMini V3 delivers impressive features for its price point.

How long does the iMini iMini V3 battery last?

The iMini iMini V3 features a 500mAh battery, providing reliable performance for typical daily use.

What cartridges work with the iMini iMini V3?

The iMini iMini V3 uses standard 510 threading, compatible with virtually all 510-threaded cartridges on the market.

What are the main advantages of the iMini iMini V3?

Exceptional value under $20. Four voltage settings. Ultra-compact, palm-concealable design.

What should I know before buying the iMini iMini V3?

Consider these factors: 500mAh limits daily capacity. 12mm max cartridge width.