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LED Screen Display · 20 Voltage Settings · Preheat Function · USB-C Charging
A compact, rechargeable 510-thread variable-voltage battery designed for precise power control and discreet everyday use. Choose from 20 voltage settings across the standard 2.0V–4.0V output range, with an LED display, preheat mode, button activation, and USB-C charging.
20 Settings
Voltage Steps
2.0–4.0V
Output Range
0.1V
Fine Adjustment
400 / 350mAh
Battery Options
LED Display
Voltage Feedback
USB-C
Charging
Two battery capacity options depending on the version selected.
Integrated LED display for live voltage readout and device status feedback.
BEOWULF MAX offers 20 discrete voltage settings from 2.0V to 4.0V in 0.1V steps. More control than any preset-mode battery in the lineup. Additional power options available on request.
2.0V
Minimum
3.2V
Current
4.0V
Maximum
2.0V
Lower end of the standard adjustable voltage range.
+0.1V
Increase the setting by 0.1V at a time using the button controls.
4.0V
Upper end of the standard voltage range.
Battery
400mAh
Dimensions
Ø14 × 82.1mm
Weight
28g
Wider body, higher capacity.
Battery
350mAh
Dimensions
Ø11.2 × 98mm
Weight
20.2g
Slimmer body, taller form.
See the LED display, both body sizes, voltage range, button controls, USB-C port, and custom finish options.
Complete specification data covering both BEOWULF MAX and BEOWULF configurations.
| Product | BEOWULF MAX / BEOWULF |
|---|---|
| Product Type | LED VV Battery |
| Connection | 510 Thread |
| Standard Output | 2.0V–4.0V |
| Voltage Steps | 0.1V |
| Voltage Settings | 20 |
| Additional Voltage Options | Available upon request |
5x
Click within 2 seconds
3× + 1×
3 clicks enters adjust mode · 1 click per +0.1V
2×
Activates 12-second preheat
1x
Exits preheat early
Preheat operates at the currently selected voltage setting. Double-click to activate, single-click to stop early.
01
Click 2 times to enter preheat mode.
02
Preheat runs at the current voltage for 12 seconds.
03
Click once to exit preheat early.
The built-in LED screen shows your current voltage setting in real time — providing clearer feedback than standard LED-only indicators on single-output batteries.
Voltage Settings
Output Range
Increment
Light flashes 5 times and device enters dormancy. Red light flashes 5× on next press if short circuit persists.
Normal draw time is 10 seconds. If exceeded, light flashes 3 times and output stops.
BEOWULF MAX
400mAh
BEOWULF
350mAh
Charging
USB-C · Light stays on while charging
Fully Charged
Light flashes 20× then turns off
Compact, lightweight construction designed for comfortable handheld use and discreet portability.
-5°C to +35°C
Have questions about our hardware, packaging, customization, or ordering process? Here are answers to the questions we hear most often.
BEOWULF MAX has 20 voltage settings, covering 2.0V–4.0V. Voltage can be adjusted in 0.1V increments.
Click 3 times to enter voltage adjust mode, then click once per 0.1V increase. The LED display confirms the setting.
BEOWULF MAX: 400mAh, Ø14 × 82.1mm, 28g. BEOWULF: 350mAh, Ø11.2 × 98mm, 20.2g.
BEOWULF offers 20 settings from 2.0V–4.0V with an LED display. DELTA offers 1.2V–4.2V in 0.1V steps, plus OLED display, session time, and puff tracking.
When battery voltage drops below 3.2V, the device stops output. The indicator light then flashes 10 times.
Still have questions? Email us at hello@rectitudepartners.com
2.0V–4.0V range in 0.1V steps — 20 precise levels for dialed-in output.
Two slim cylindrical formats — either fits in the palm. Both under 2 ounces.
Additional voltage configurations available upon request.
| BEOWULF MAX Dimensions | Ø14 × 82.1mm |
|---|
| BEOWULF Dimensions | Ø11.2 × 98mm |
|---|
| BEOWULF MAX Weight | 28g |
|---|
| BEOWULF Weight | 20.2g |
|---|
| Activation | Button Activate |
|---|
| Battery Capacity | 400mAh / 350mAh |
|---|
| Preheat Function | Yes (12 seconds) |
|---|
| Viscosity Range | 1,000–110,000 cps |
|---|
| Charging Port | USB-C |
|---|
When battery voltage falls below 3.2V, no output and light flashes 10 times.
45–75% RH
Keep sealed with protective film during storage.
Complete one charge/discharge cycle every 180 days.
