| Pros | Cons |
|---|---|
| Excellent 10k mAh capacity | Below average magnetic pull strength |
| Great build quality and ultra-slim size | Slow recharge |
| Don’t heat easily | Slow wireless efficiency |
| Also great for wired use | Expensive |
We’ve tested a lot of Qi2-certified battery packs this, and while many have flashy specs, few actually delivered. The Anker MagGo, though, genuinely impressed us. It held the highest real-world capacity of all 10k packs we tested without melting down.
Looking for the best of the best Qi2 battery banks? Check out our Top 5!
How Do We Test
We don’t just look at specs and call it a day. Every power bank we review goes through a series of real-world and lab-based tests to figure out how it actually performs. Below are the specific tests we run on every Qi2 battery pack before giving it a ranking.
- Real Capacity Testing: We fully discharge each battery pack using calibrated power meters to measure the actual energy (in Wh) delivered to a device. This helps us determine whether the stated capacity is accurate and if not, by how much. It’s the best way to tell if you’re getting what you paid for.
- Wired Charging Performance: We test wired output across all supported PDO (Power Delivery Object) and PPS (Programmable Power Supply) profiles. Using meters and voltage analyzers, we record output stability, voltage drop, and protocol accuracy. Each protocol is scored based on its ability to maintain power under real-world loads.
- Qi2 Wireless Charging: We test wireless charging by attaching the pack to an iPhone and measuring how much charge it delivers in 30 minutes. We log both the percentage gained and the actual watt-hours transferred. This gives us a real-world speed benchmark for wireless use.
- Efficiency Testing: We compare the energy drawn from the battery pack to what’s actually delivered to the device (both wired and wireless). Efficiency matters: high losses mean wasted energy and more heat. Each pack gets a score for wired efficiency, Qi2 efficiency, and Qi2 thermal efficiency.
- Thermal Monitoring: We track temperatures during wired discharge, recharge, and Qi2 charging using sensors placed on the battery surface. This helps us identify thermal choke points or heat buildup that could limit performance or comfort in use. Products that stay cool under pressure earn extra points.
- Recharge Performance: We measure recharge speed (Wh per minute) and recharge efficiency (how much energy is needed to fully refill the pack). Fast recharging is great but not if it takes double the energy to do it. We test both metrics to determine how well-designed the recharge circuitry is.
- Magnetic Strength: Using calibrated force gauges, we measure the magnetic push and pull strength of each pack. This simulates real-world use: will the pack stay attached in your pocket or fall off if bumped? We also factor in how usable the pack feels when attached during charging.
- Size, Weight & Energy Density: We weigh each battery and measure its dimensions to calculate Wh per gram and Wh per cm³. A pack might perform well, but if it’s bulky and inefficient with space or weight, that knocks it down a few points. Portability still matters especially for wireless-first products.
Design
| Qi2 Battery Bank | Anker MagGo Power Bank Ultra-Slim 10k |
|---|---|
| Stated Capacity | 10,000 mAh (38.7 Wh) |
| Weight | 208.9 g |
| Thickness | 15.0 mm |
| Wireless Output | 15 W |
| Wired Output Max | 30 W |
| Ports | 1 × USB-C |
| Magnetic Strength (avg 18.9 N) | 17.6 N ❌ |
The MagGo feels premium, with a nice blend of plastic and metal, and comes in a super slim form factor. It is one of the thinnest 10k packs in our entire test group. Usability is simple with LED dots, and while the push magnetic strength was above average, the pull was slightly underwhelming.
Performance
| Qi2 Testing Results | Anker MagGo Power Bank Ultra-Slim 10k |
|---|---|
| Wireless Energy Delivered to iPhone in 30 mins (avg 2.9 Wh) | 3.04 Wh ✅ |
| Wireless Energy Drawn from Battery Bank in 30 mins | 5.56 Wh |
| Max Temperature (avg 53 °C / 127 °F) | 52.8 °C ✅ |
| Efficiency (avg 64%) | 55% ❌ |
This pack showed strong voltage accuracy and stability, with both PDO and PPS protocols scoring above average. It couldn’t consistently hold 30W during discharge but still delivered 28.05Wh. Wireless charging reached 22% in 30 minutes, with a Qi2 efficiency of 55%, which is a hair below average. Recharging took a bit over 2 hours, requiring 43.4Wh to fill. It is not the fastest, but acceptable for a larger capacity pack.
| Real World Capacity Testing | Anker MagGo Power Bank Ultra-Slim 10k |
|---|---|
| Stated Capacity | 38.7 Wh |
| Real World Capacity | 28.1 Wh |
| Energy Required for 100% Charge | 43.4 Wh |
| Recharge Time | 140 min (~2h 20m) |
| Real World Efficiency (avg 61%) | 72.5% ✅ |
Thermals
One of the coolest 10k packs we tested. Discharge temps hovered around 40.6°C, and even during 30-minute wireless sessions it stayed under 53°C. That’s impressive given the performance. Anker clearly dialed in its thermal control here.
Value
| Qi2 Battery Bank | Anker MagGo Power Bank Ultra-Slim 10k |
|---|---|
| Overall Score | — |
| Rank | — |
| Wireless Efficiency | 55% |
| Wired Efficiency | 72.5% |
| Price | $80 |
| Standout Feature | Slimmest 10k tested, doubles as a wired tablet/laptop pack |
At $80, the MagGo isn’t the cheapest, but it justifies its price with consistency, build quality, and versatility. The 10k capacity paired with PPS support makes it viable for light laptop use or longer tablet sessions. If you want something that works just as well wired as it does wireless, this is one of the few battery banks we’d actually recommend buying.
Verdict
The Anker MagGo 10k is the first Qi2 pack we’ve tested that truly feels complete. It handles heat well, performs reliably across the board, and backs up its slim form factor with real substance. If you’ve been burned by flashy specs and poor results, this might be your redemption arc. We’d get it.
Looking for something that is worth all your penny in 2025? Check out this list!