More Vapor: 1VP BF Box Bottom-Feed Box Showcase and Design Ideas
As BF bottom-feed boxes gain recognition among domestic users, many atomizers need to be developed from the perspective of being suitable for bottom feeding. Today, small and large RDAs basically all have the ability to adapt to BF devices. But looking at
With the acceptance of bottom-feed (BF) boxes by domestic users, many atomizers need to be developed from the perspective of suitability for bottom feeding. Nowadays, various RDA models are equipped with the capability to adapt to BF devices; however, many mechanical BF mods cannot meet the power requirements of numerous atomizers. For example, when paired with certain RDAs that require medium to high resistance, the output of mechanical BF mods cannot provide the corresponding power. To address this issue while ensuring mechanical output for bottom-feed boxes, I designed this adjustable voltage, bypass mode bottom-feed device—1VP BF Box.
First, regarding the thickness of the mod, 24mm diameter RDAs are currently mainstream, so I set the thickness of the 1VP BF Box at 25mm, allowing the mod to pair with most RDAs without overhang, making it aesthetically pleasing while also maximizing the internal bottle capacity (the dimensions of the 1VP BF Box are 83*47*25mm).
The push-pull aluminum alloy magnetic cover is designed for BF mods, making refilling more convenient. In previous Vapor mods, I had not tried a magnetic push-pull cover, so I incorporated it into the 1VP BF Box. This mod is available in silver and black colors and is CNC machined (not cast), making it very lightweight, with a carbon fiber cover corresponding to different body colors.
To allow BF mods to adapt to low, medium, and high resistance RDAs, a compact solution is essential. I calculated the dimensions of this chip within a small space and minimized its own power loss. During use, whether you are using a resistance above 1.0Ω or close to 0.1Ω, you will not experience output delays, weakness, or overheating issues; the chip supports a minimum resistance of 0.08Ω. Additionally, I know that everyone cares about power accuracy; the feeling of 70W when set to 75W does not exist; such low-level output issues can significantly affect the user experience. However, for a single battery mod, if you output low resistance at high power, its battery life will be as short as a mechanical mod, which cannot be changed.
The 1VP BF Box can be adjusted between 10-75W, compensating for the lack of power in mechanical BF mods when paired with medium to high resistance RDAs. This is friendly enough for using A1-0.32/0.4mm wire for single coil high nicotine (salt) e-liquids or using 0.5mm wire for dual coil atomizers, with 75W power sufficient for daily use. When pressing the up and down arrows, you can switch between mechanical and adjustable voltage modes (the product instruction card provides detailed usage instructions). In mechanical mode, the V value on the screen represents the real-time voltage of the battery, which is as intuitive as the battery percentage.
You may ask whether the mechanical aspect of the 1VP BF Box is powerful. My answer is affirmative; firstly, this mod eliminates the weak firing of spring-loaded BF boxes (there is no firing delay with electronic shutters), and secondly, I have achieved over 95% output conversion efficiency (when facing 0.1 ohm resistance), with no delay and sufficient power.
The mod features a very cute square silicone juice bottle. To a large extent, I referenced the layout of the BB box for the 1VP BF Box. To reduce the frequency of inserting and removing the juice bottle, making it easier for users to refill the bottle outdoors, the juice bottle cap has a filling hole and a pressure relief hole, allowing you to fill it with a plastic syringe without removing the bottle. Once you get the hang of it, you will find that I have adjusted the hardness of the bottle to the best (regardless of how much juice is inside, the squeezing pressure remains consistent); if you have used soft silicone bottles, you will understand that controlling the squeezing force is not easy (the force used varies when the bottle is full or empty).
The actual capacity of this juice bottle is 5.5ml, which is not small; however, there is a trade-off: the bottle's color is relatively dark, making it difficult to see the remaining juice in low light. I did this because all silicone juice bottles have an unavoidable issue—being stained. If the bottle color were set to white or transparent, after just one or two uses, the yellowing would become apparent, affecting aesthetics thereafter.
The mod has a battery pull strap for easy battery installation and removal.
We have struggled with the safety of the fire button on some devices, as the concern of accidentally firing while carrying the mod in a pocket has caused many to miss out on great designs. I empathize with this. Initially, I used a PEI material to wrap a steel fire button with a CD texture, which effectively prevented accidental firing but reduced the tactile feel of the button, blurring the boundary. Ultimately, I maintained a good firing feel while enhancing hardness without increasing the number of buttons. Although the chip retains the settings for locking with three consecutive presses and turning on/off with five presses, to be honest, those are rarely needed.
The chip in the 1VP BF Box includes timeout (10s) protection, low voltage (3.2V) protection, short circuit (0.08Ω) protection, high temperature (75℃) protection, and reverse battery (unable to power on) protection, which is not difficult for chip mods, ensuring better safety.
The all-aluminum CNC 1VP BF Box feels solid in hand, with the sliding cover laser-engraved with the 1VP.ME website logo and the slogan "It’s time to talk about vape" (designed with the help of my friend Shui Ge), which is my favorite style. This mod is manufactured by Shenzhen Hengwansheng Technology Co., Ltd., and I hope everyone will like it.
First, regarding the thickness of the mod, 24mm diameter RDAs are currently mainstream, so I set the thickness of the 1VP BF Box at 25mm, allowing the mod to pair with most RDAs without overhang, making it aesthetically pleasing while also maximizing the internal bottle capacity (the dimensions of the 1VP BF Box are 83*47*25mm).
The push-pull aluminum alloy magnetic cover is designed for BF mods, making refilling more convenient. In previous Vapor mods, I had not tried a magnetic push-pull cover, so I incorporated it into the 1VP BF Box. This mod is available in silver and black colors and is CNC machined (not cast), making it very lightweight, with a carbon fiber cover corresponding to different body colors.To allow BF mods to adapt to low, medium, and high resistance RDAs, a compact solution is essential. I calculated the dimensions of this chip within a small space and minimized its own power loss. During use, whether you are using a resistance above 1.0Ω or close to 0.1Ω, you will not experience output delays, weakness, or overheating issues; the chip supports a minimum resistance of 0.08Ω. Additionally, I know that everyone cares about power accuracy; the feeling of 70W when set to 75W does not exist; such low-level output issues can significantly affect the user experience. However, for a single battery mod, if you output low resistance at high power, its battery life will be as short as a mechanical mod, which cannot be changed.
The 1VP BF Box can be adjusted between 10-75W, compensating for the lack of power in mechanical BF mods when paired with medium to high resistance RDAs. This is friendly enough for using A1-0.32/0.4mm wire for single coil high nicotine (salt) e-liquids or using 0.5mm wire for dual coil atomizers, with 75W power sufficient for daily use. When pressing the up and down arrows, you can switch between mechanical and adjustable voltage modes (the product instruction card provides detailed usage instructions). In mechanical mode, the V value on the screen represents the real-time voltage of the battery, which is as intuitive as the battery percentage.
You may ask whether the mechanical aspect of the 1VP BF Box is powerful. My answer is affirmative; firstly, this mod eliminates the weak firing of spring-loaded BF boxes (there is no firing delay with electronic shutters), and secondly, I have achieved over 95% output conversion efficiency (when facing 0.1 ohm resistance), with no delay and sufficient power.
The mod features a very cute square silicone juice bottle. To a large extent, I referenced the layout of the BB box for the 1VP BF Box. To reduce the frequency of inserting and removing the juice bottle, making it easier for users to refill the bottle outdoors, the juice bottle cap has a filling hole and a pressure relief hole, allowing you to fill it with a plastic syringe without removing the bottle. Once you get the hang of it, you will find that I have adjusted the hardness of the bottle to the best (regardless of how much juice is inside, the squeezing pressure remains consistent); if you have used soft silicone bottles, you will understand that controlling the squeezing force is not easy (the force used varies when the bottle is full or empty).The actual capacity of this juice bottle is 5.5ml, which is not small; however, there is a trade-off: the bottle's color is relatively dark, making it difficult to see the remaining juice in low light. I did this because all silicone juice bottles have an unavoidable issue—being stained. If the bottle color were set to white or transparent, after just one or two uses, the yellowing would become apparent, affecting aesthetics thereafter.
The mod has a battery pull strap for easy battery installation and removal.
We have struggled with the safety of the fire button on some devices, as the concern of accidentally firing while carrying the mod in a pocket has caused many to miss out on great designs. I empathize with this. Initially, I used a PEI material to wrap a steel fire button with a CD texture, which effectively prevented accidental firing but reduced the tactile feel of the button, blurring the boundary. Ultimately, I maintained a good firing feel while enhancing hardness without increasing the number of buttons. Although the chip retains the settings for locking with three consecutive presses and turning on/off with five presses, to be honest, those are rarely needed.The chip in the 1VP BF Box includes timeout (10s) protection, low voltage (3.2V) protection, short circuit (0.08Ω) protection, high temperature (75℃) protection, and reverse battery (unable to power on) protection, which is not difficult for chip mods, ensuring better safety.
The all-aluminum CNC 1VP BF Box feels solid in hand, with the sliding cover laser-engraved with the 1VP.ME website logo and the slogan "It’s time to talk about vape" (designed with the help of my friend Shui Ge), which is my favorite style. This mod is manufactured by Shenzhen Hengwansheng Technology Co., Ltd., and I hope everyone will like it.
