The GOBOULT Ampvault V20 proves that massive battery capacity doesn’t require massive size or price. At just Rs. 999, this 20000mAh power bank delivers 3-4 full phone charges in a remarkably compact form factor, with the added convenience of 10-minute delivery through Swiggy Instamart. For budget-conscious users seeking reliable portable power, this is a compelling option.
Table of Contents
GOBOULT Ampvault V20 20000mAh Power Bank: Quick Specifications
| Feature | Details |
|---|---|
| Capacity | 20000mAh (74Wh) |
| Fast Charging | 22.5W output support |
| Input Ports | USB Type-C (charging) |
| Output Ports | 2x USB-A, 1x USB Type-C |
| Charge Cycles | 3-4 full charges (typical smartphones) |
| Charging Time | ~4-5 hours (self-charge with 18W adapter) |
| Weight | Lightweight, portable |
| Form Factor | Compact, slim design |
| Build Quality | Plastic body with Pure Black finish |
| Safety Features | Overcharge, overcurrent, short-circuit protection |
| LED Indicators | Battery level display |
| Color | Pure Black |
| Price | Rs. 999 |
| Availability | Swiggy Instamart – 10 Minute Delivery |
Design: Compact Marvel That Defies Expectations
The Ampvault V20’s most impressive achievement is fitting 20000mAh capacity into a form factor that genuinely feels pocket-friendly. Unlike bulky power banks that feel like carrying bricks, GOBOULT has engineered something remarkably slim and lightweight.
Pure Black Finish: The matte black exterior looks professional and resists fingerprints well. No flashy branding or unnecessary design elements—just clean, functional aesthetics that work anywhere from boardrooms to backpacks.
Portability Champion: The compact dimensions mean this power bank actually fits in:
- Jeans pockets (slightly snug but manageable)
- Jacket pockets (comfortable fit)
- Small crossbody bags
- Laptop bag side pockets
- Car door compartments
This isn’t just marketing speak—the V20 genuinely goes anywhere without the bulk typically associated with 20000mAh capacities.
The 10-Minute Delivery Game-Changer
Here’s where GOBOULT’s partnership with Swiggy Instamart becomes genuinely innovative. Your phone’s dying before an important meeting or long journey? Order the Ampvault V20 through Instamart and have it delivered in 10 minutes.
Real-World Scenario: Forgot to charge your power bank before a weekend trip? Realized mid-morning your phone won’t survive the workday? Emergency backup for an unexpected power outage? Instamart delivery transforms this from “plan ahead” purchase to “instant solution.”
This convenience factor adds genuine value beyond the product itself, especially in urban India where Swiggy Instamart operates extensively.
Charging Performance: 3-4 Cycles of Freedom
Real-World Capacity
The 20000mAh rating translates to practical, usable charges:
Typical Smartphone Charges (based on battery sizes):
- iPhone 14/15 (3279mAh): ~4.5 full charges
- Samsung Galaxy S24 (4000mAh): ~3.5 full charges
- OnePlus 12 (5400mAh): ~2.5 full charges
- Xiaomi 14 (4610mAh): ~3 full charges
The claimed 3-4 charge cycles holds true for most modern smartphones, providing multiple days of extended battery life or rescuing phones through long trips and power outages.
22.5W Fast Charging
The 22.5W output supports fast charging protocols for compatible devices. While not the absolute fastest (some flagships support 65W+), 22.5W represents the sweet spot for:
- iPhone fast charging: Charges to 50% in ~30 minutes
- Android mid-rangers: Significantly faster than standard 5W/10W charging
- Budget devices: Still benefits from improved charging speeds
Multiple Device Charging: With 2 USB-A ports and 1 USB-C port, simultaneously charge three devices—phone, earbuds, and smartwatch—making it perfect for travelers or families.
Battery Life and Self-Charging
Usage Longevity
In real-world testing across several charge cycles, the V20 maintains consistent performance:
- Single user + smartphone: Lasts 4-5 days without recharging
- Heavy user scenario: 2-3 days with frequent top-ups
- Emergency backup: Weeks in standby for occasional use
Self-Charging Time
Using an 18W adapter, the power bank recharges fully in approximately 4-5 hours. Overnight charging or a workday on the desk brings it back to 100%, ready for the next adventure.
LED Indicators: Four LED lights clearly display remaining capacity, preventing unexpected dead battery scenarios.
Safety Features: Peace of Mind
GOBOULT includes essential protection mechanisms:
- Overcharge Protection: Prevents battery damage from prolonged charging
- Overcurrent Protection: Safeguards connected devices from power surges
- Short-Circuit Protection: Automatic shutdown in fault conditions
- Temperature Control: Prevents overheating during intensive charging
While these are standard features, their presence at the Rs. 999 price point isn’t guaranteed with all budget brands. GOBOULT delivers peace of mind alongside power.
Build Quality: Solid for the Price
The plastic construction feels sturdy without premium materials. No creaking, no flex, no cheap rattling—just dependable solidity. The Pure Black finish hides minor scratches well, maintaining a presentable appearance through daily use.
Durability Reality Check: This isn’t ruggedized military-grade construction, but it handles typical backpack jostling, pocket carrying, and desk drops without issues. Treat it reasonably, and it’ll serve reliably.
Value Proposition: Rs. 999 Sweet Spot
Let’s contextualize the Ampvault V20’s value:
What You Get: ✅ 20000mAh capacity (3-4 phone charges) ✅ 22.5W fast charging support ✅ Triple output ports (charge 3 devices) ✅ Compact, portable form factor ✅ Safety protection features ✅ LED battery indicators ✅ 10-minute delivery via Instamart
For Just Rs. 999
Competitive Landscape:
- Mi Power Bank 3i 20000mAh (~Rs. 1,799): Similar specs, higher price
- Ambrane 20000mAh (~Rs. 1,299): Less compact design
- Realme 20000mAh (~Rs. 1,499): Comparable but pricier
- Generic brands (~Rs. 700-800): Questionable reliability, no fast charging
The V20 undercuts established brands significantly while maintaining reliable performance and thoughtful design.
Real-World Use Cases
Daily Commuter
Long metro rides, cab journeys, or bus commutes drain batteries fast. The V20 keeps your phone alive through navigation, music streaming, work emails, and entertainment—all day, every day.
Frequent Traveler
Flight delays, airport layovers, train journeys—the Ampvault V20 provides multiple charges without hunting for power outlets. Charge phone, tablet, and wireless earbuds simultaneously.
Content Creator
Shooting Instagram Reels, TikTok videos, or YouTube content demolishes phone batteries. Keep creating without battery anxiety limiting your creativity.
Emergency Backup
Power outages, natural disasters, or unexpected situations where wall charging isn’t available. The V20 becomes a lifeline keeping communication devices operational.
Festival/Concert Goer
All-day outdoor events with heavy camera use, GPS, and social media sharing. One power bank, multiple friends benefiting from emergency charges.
Practical Advantages
1. Fits Anywhere: Genuinely compact design means it actually comes with you rather than staying home because it’s too bulky
2. Multi-Device Versatility: Charge phone, smartwatch, and Bluetooth earbuds on the go
3. Travel-Friendly: Under 100Wh airline carry-on limit, perfect for flights
4. Instant Availability: Instamart delivery eliminates planning anxiety—get it when you need it
5. Budget-Friendly: Rs. 999 pricing makes it accessible without compromising essential features
Minor Limitations
Not 65W/100W Charging: Flagship phones with ultra-fast charging won’t hit maximum speeds, though 22.5W remains respectable
Plastic Build: Functional but not premium materials. Won’t appeal to luxury-seeking users
No USB-C Input/Output Simultaneously: Can’t charge itself while charging other devices efficiently
Basic Aesthetics: Purely functional design without premium finishing touches
These limitations barely dent the overall value proposition at this price point.
Who Should Buy This?
✅ Perfect For:
1. Budget-Conscious Users: Maximum capacity at minimum price
2. Daily Commuters: Keep devices alive through long travel days
3. Students: Affordable backup power for classes, libraries, study sessions
4. Frequent Travelers: Compact enough to always pack, powerful enough to matter
5. Emergency Preparedness: Backup power for unexpected situations
6. Multi-Device Users: Charge phone, earbuds, smartwatch simultaneously
7. Last-Minute Shoppers: Instamart delivery solves forgotten/dead power bank emergencies
❌ Skip If:
1. Ultra-Fast Charging Required: Flagship users demanding 65W+ charging speeds
2. Premium Build Seekers: Want metal construction and luxury aesthetics
3. Wireless Charging Needed: No Qi wireless charging capability
Final Verdict: Budget Champion with Smart Convenience
Rating: 8/10 for Price Category
The GOBOULT Ampvault V20 delivers exceptional value by solving real problems—massive capacity, compact design, fast charging, and instant availability—at an unbeatable Rs. 999 price point.
Pros: ✅ Outstanding 20000mAh capacity (3-4 charges) ✅ Remarkably compact form factor ✅ 22.5W fast charging support ✅ Triple device charging capability ✅ Comprehensive safety features ✅ Unbeatable price (Rs. 999) ✅ 10-minute Instamart delivery ✅ LED battery indicators
Cons: ❌ Plastic construction (not premium) ❌ Not ultra-fast 65W+ charging ❌ Basic aesthetics ❌ No wireless charging
Bottom Line: The Ampvault V20 represents the sweet spot where capacity, portability, and price converge perfectly. For under Rs. 1,000, you get reliable, substantial portable power that genuinely improves daily life—multiple phone charges, compact enough to actually carry, and available in 10 minutes when you need it most.
Whether you’re a student stretching battery life between classes, a professional surviving marathon meeting days, or a traveler requiring dependable backup power, the GOBOULT Ampvault V20 delivers without compromise. Add the Instamart convenience factor, and this becomes not just a good purchase but a smart solution to modern battery anxiety.
Highly recommended for anyone seeking maximum portable power at minimum investment.
Order GOBOULT Ampvault V20 on Swiggy Instamart – Get it in 10 Minutes
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