STIIIZY BIIIG Review: Discontinued Battery vs Pro XL
At a Glance
The STIIIZY BIIIG is a 550mAh pod battery with a fixed 3.4V output, draw activation, and no buttons or settings. STIIIZY has discontinued it, and the current lineup is the Pro, Pro XL, and Bar. Angies Boutique still has limited BIIIG stock at $39.99. For the same 550mAh capacity with adjustable voltage, the Pro XL is $36.99.
What You Need to Know
The BIIIG suits one buyer: someone who already runs a BIIIG, likes the way 3.4V hits, and wants a spare or a replacement before the last units are gone. Everyone else gets more from the Pro XL, which holds the same 550mAh, adds adjustable voltage, and costs $3 less. Neither battery accepts 510-thread cartridges.
Is the STIIIZY BIIIG Discontinued?
Yes. STIIIZY lists the BIIIG as discontinued on its own battery page, alongside the Original battery that came before it. The current STIIIZY battery lineup is three models: the Pro, the Pro XL, and the Bar. STIIIZY is not producing new BIIIG units, so the stock left at retailers is the last of it.
Angies Boutique has limited BIIIG stock at $39.99. The maker does not restock discontinued hardware, and once our shelf is empty the BIIIG leaves the site for good. If you rely on one every day, now is the time to pick up a backup.
Section recap: The BIIIG is out of production. What remains on shelves, including ours, is final stock.
STIIIZY BIIIG Specs
| Spec | STIIIZY BIIIG |
|---|---|
| Capacity | 550mAh |
| Voltage | Fixed 3.4V, no adjustment |
| Activation | Draw-activated, no buttons |
| Indicator | LED in the STIIIZY logo |
| Connection | Magnetic, STIIIZY proprietary |
| 510-thread | No |
| Charging port | USB-C on units made since 2023, micro-USB on earlier units |
| Charge time | About 90 minutes from empty |
| In the box | BIIIG battery and USB charging cable |
| Status | Discontinued by STIIIZY |
| Angies price | $39.99 |
The spec sheet is short on purpose. STIIIZY built the BIIIG as the no-decisions battery: attach, inhale, done. The 550mAh cell is more than double the 210mAh in the slim STIIIZY Pro, which is where the BIIIG earned its name.
Section recap: 550mAh, fixed 3.4V, draw-activated, magnetic STIIIZY connection, and no 510-thread support.
What Charging Port Does the BIIIG Use?
That depends on when the unit was made. The BIIIG launched with a micro-USB port, and STIIIZY moved it to USB-C around 2023. That split is why retailer listings disagree: many still carry the original micro-USB spec sheet, while newer listings say USB-C.
Every BIIIG ships with a cable that matches its own port, so the kit charges out of the box either way. Before you buy a spare cable, look at the port on your battery. A USB-C plug does not fit a micro-USB port, and the reverse is also true. A full charge from empty takes about 90 minutes, and the time varies with the power source. The BIIIG has no screen, so the logo light is the only charge indicator.
Section recap: Newer BIIIGs charge over USB-C, older ones over micro-USB, and each kit includes the matching cable. A full charge takes about 90 minutes.
How the BIIIG Hits: Fixed 3.4V Explained
Voltage sets how hot the heating element runs. Adjustable STIIIZY batteries let you choose. The BIIIG locks it at 3.4V, which lands between Low and Medium on the STIIIZY Pro scale.
| Battery and setting | Voltage | How it feels |
|---|---|---|
| Pro on Low (blue) | 3.3V | Coolest, smoothest, longest charge |
| BIIIG (fixed) | 3.4V | Smooth, slightly warmer than Low |
| Pro on Medium (white) | 3.5V | Balanced everyday setting |
| Pro on High (purple) | 3.7V | Warmest, biggest draw, fastest drain |
The practical result: the BIIIG runs cooler and smoother than a Pro on High, and a touch warmer than a Pro on Low. BIIIG owners who move to a Pro or Pro XL match the feel most closely by starting on Low or Medium. What the BIIIG gives up is range. Nobody turns it up for a bigger draw or down to stretch a charge.
Section recap: 3.4V sits between the Pro's Low and Medium settings. The BIIIG trades flexibility for one consistent, middle-of-the-road draw.
BIIIG vs Pro XL: Which Should You Get?
| BIIIG | Pro XL | |
|---|---|---|
| Capacity | 550mAh | 550mAh |
| Voltage | Fixed 3.4V | Adjustable |
| Charging | USB-C or micro-USB, by production year | USB-C |
| Status | Discontinued | Current lineup |
| Angies price | $39.99 | $36.99 |
The Pro XL matches the BIIIG's 550mAh, adds adjustable voltage, stays in STIIIZY's current production, and costs $3 less. For most buyers it is the better battery. The BIIIG earns its price only when the fixed 3.4V feel is the whole point.
| If you want... | Get the... | Price |
|---|---|---|
| The exact BIIIG feel with zero settings | BIIIG (while stock lasts) | $39.99 |
| 550mAh with voltage control | Pro XL | $36.99 |
| The slimmest STIIIZY battery | Pro | $26.99 |
| Two chambers, a display, and airflow control | Bar | $29.99 |
| 510-thread cartridge compatibility | Yocan Lux MAX 510 | $27.99 |
For every STIIIZY battery side by side, including the Bar's dual-chamber design, read our STIIIZY battery comparison guide.
Section recap: Same capacity, but the Pro XL adds voltage control, stays in production, and costs less. Buy the BIIIG only for its fixed 3.4V feel.
Keeping a BIIIG Running
A discontinued battery has no replacement coming, so the one you own needs to last.
- Swab the magnetic contacts. Pocket lint on the contacts is the most common cause of a weak or dead draw. A dry cotton swab fixes it.
- Reseat firmly. A loose magnetic connection reads as a flat battery. Pull it out and push it back in before assuming the worst.
- Charge before it runs flat. Topping up beats draining the cell to empty over and over.
- Use the matching cable. Never force a plug into the port. Check whether your unit is USB-C or micro-USB first.
- Keep it out of a hot car. Heat wears down lithium cells faster than use does.
Section recap: Clean contacts, a firm reseat, and the right cable solve most BIIIG problems and extend its life.
Common Mistakes to Avoid
- Waiting for a BIIIG restock that STIIIZY will not produce
- Buying a USB-C cable for an older micro-USB BIIIG, or the reverse
- Expecting the BIIIG to accept 510-thread cartridges
- Paying BIIIG prices when you want voltage control, which the Pro XL offers for less
- Assuming a dead battery when the contacts only need a swab
- Trusting spec sheets that list micro-USB as the only BIIIG port
Section recap: The costly errors are waiting on stock that is not coming and buying the wrong cable for your production year.
Bottom Line
The BIIIG is a solid battery that STIIIZY no longer makes. If the fixed 3.4V draw is the one you know and want, buy a BIIIG now, because the last units are the last units. If you are choosing fresh, the Pro XL at $36.99 is the smarter buy: same 550mAh, adjustable voltage, current production, and a lower price.
What to Do Next
Grab the STIIIZY BIIIG Battery Advanced Kit at $39.99 while limited stock remains, or step up to the STIIIZY Pro XL at $36.99 for the same capacity with adjustable voltage. Our STIIIZY battery comparison guide lays out the Pro, Pro XL, Bar, and BIIIG side by side, and the vape brands collection covers the rest of our battery hardware. STIIIZY publishes its current lineup at stiiizy.com. Or walk in at 838 N Broadway in Downtown Los Angeles, open daily 11am to 7pm, and compare them in hand.
Common Questions
Is the STIIIZY BIIIG discontinued?
Yes. STIIIZY lists the BIIIG as discontinued on its official battery page, along with the Original battery. The current STIIIZY battery lineup is the Pro, Pro XL, and Bar. No new BIIIG units are being produced, so remaining retail stock is final. Angies Boutique has limited BIIIG stock at $39.99. The closest current replacement is the Pro XL at $36.99, which has the same 550mAh capacity and adds adjustable voltage.
Does the STIIIZY BIIIG charge with USB-C or micro-USB?
Both, depending on when the battery was made. The BIIIG launched with a micro-USB port, and STIIIZY switched it to USB-C around 2023. Retailer spec sheets still disagree because many copied the original listing. Every BIIIG kit includes a cable that fits its own port. Before buying a replacement cable, look at the port on your battery, since USB-C and micro-USB plugs are not interchangeable. A full charge takes about 90 minutes.
What voltage is the STIIIZY BIIIG?
The BIIIG runs at a fixed 3.4V with no way to adjust it. On the STIIIZY Pro scale, 3.4V sits between Low (3.3V, blue light) and Medium (3.5V, white light). That makes the BIIIG smoother and cooler than a Pro on High at 3.7V. If you move from a BIIIG to a Pro or Pro XL and want the same feel, start on Low or Medium and adjust from there.
What is the difference between the STIIIZY BIIIG and the Pro XL?
Both hold 550mAh. The BIIIG runs at a fixed 3.4V with no settings, while the Pro XL offers adjustable voltage. The BIIIG is discontinued, and the Pro XL is part of STIIIZY's current lineup. At Angies Boutique the BIIIG is $39.99 and the Pro XL is $36.99, so the Pro XL costs less and does more for anyone who wants control over the draw. The BIIIG remains the pick for people who want its exact fixed output.
Does the STIIIZY BIIIG work with 510-thread cartridges?
No. The BIIIG uses STIIIZY's proprietary magnetic connection, so standard 510-thread cartridges will not attach. The same is true of the Pro, Pro XL, and Bar. If you need a 510-thread battery, the Yocan Lux MAX 510 at $27.99 is the equivalent in that format at Angies Boutique, and it works with the standard cartridges that STIIIZY hardware does not accept.
