Overview
The Ooze Twist Slim Pen 2.0 takes the classic approach to 510 batteries. It's a slim pen with twist-dial voltage control. No screens, no smart features. Just reliable voltage adjustment you can feel.
What We Tested
Our hands-on testing methodology
Unit Tested
Twist Slim Pen 2.0
Testing Period
5 days of use
Voltage Range
3.3V - 4.8V tested
Cartridges Tested
4 different carts
Battery Life
320mAh capacity
Twist Dial
Smooth operation
Design & Build Quality
The 2.0 version refines the original Twist formula. You get improved build quality while keeping the slim profile that makes it a pocket favorite.
Slim Profile
This is one of the thinnest batteries you'll find:
- True pen dimensions
- Disappears in pockets
- Lightweight
- Unobtrusive
Build Quality
Solid construction throughout:
- Quality materials
- Reliable twist mechanism
- Durable finish
Features
Twist Voltage Control
This is the defining feature:
- Physical dial on the battery
- Turn to adjust voltage
- Tactile feedback
- 3.3V to 4.8V range
Voltage Range
| Twist Position | Voltage | Best For |
|---|---|---|
| Minimum | 3.3V | Flavor, thin oils |
| Low-Mid | 3.7V | Light vapor |
| Mid | 4.0V | Balanced |
| High | 4.4V | More vapor |
| Maximum | 4.8V | Thick oils, clouds |
Flex Temp Technology
The wide voltage range handles:
- Various oil viscosities
- Different cartridge types
- Personal preferences
Performance
Reliability
The twist mechanism's simplicity pays off:
- No electronics to fail
- Consistent adjustment
- Long-term durability
- Predictable performance
Battery Life
320mAh is on the smaller side:
- 80-120 puffs
- Light users get 1-2 days
- Regular use means daily charging
- It's a trade-off for the slim design
Vapor Quality
Standard 510 performance. It lets your cartridge shine while you control the power.
Classic vs. Modern
Why Choose Twist?
| Aspect | Twist Dial | Digital/LED |
|---|---|---|
| Adjustment | Infinite | Fixed presets |
| Feedback | Tactile | Visual |
| Complexity | None | Some |
| Failure Points | Minimal | More electronics |
Appeal of Simplicity
Some users prefer:
- No batteries-in-batteries electronics
- Mechanical reliability
- Simple adjustment
- No learning curve
Usage
Basic Operation
- Twist dial to desired voltage
- Power on (5 clicks)
- Attach cartridge
- Press button and inhale
- Adjust twist as needed
Finding Your Setting
- Start at a lower twist position
- Test with a few puffs
- Increase gradually
- Mark your preferred position mentally
Who Should Buy
Ideal For
- Budget-conscious buyers
- Backup battery seekers
- Simplicity lovers
- Twist-style fans
- Those wanting ultra-slim
Consider Alternatives If
- You need longer battery life
- You want visible voltage
- You prefer preset simplicity
Value Proposition
At around $15, the Twist Slim Pen 2.0 offers:
- Real variable voltage
- Ooze quality
- Reliable performance
- Minimal investment
For more affordable options, check out our roundup of the best cheap 510 batteries.
Maintenance
- Keep the twist dial clean
- Clean the 510 connection
- Regular USB charging
- Simple care requirements
Pros & Cons
Pros:
- Great price
- Infinite voltage adjustment
- Ultra-slim profile
- Reliable simplicity
- Wide voltage range
Cons:
- Limited battery capacity
- No visual voltage indicator
- Basic feature set
Verdict
The Ooze Twist Slim Pen 2.0 shows that simple can be best. The twist-dial voltage control works reliably, the slim profile fits anywhere, and the price makes it accessible to everyone. It works just as well as your main budget battery or a backup to fancier devices, performing without pretense either way.
Related: Ooze Twist Slim Pen 2.0 User Manual