Which Power Bank Brand Wins?
A head-to-head test of 18 power bank options with the measured results for each. See how they ranked and watch the full test video. Shoppers cross-shopping portable charger for car, power banks for phones, apple magsafe battery pack and magsafe battery pack land here for the head to head that settles it.
Some figures on this page were transcribed from the test video and have not been independently re-verified. Treat the numbers as a close guide and watch the full video for the exact readings.
INIU B61
Price shown in test: $20
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The measured results
Every number below is read straight from the test. Scroll sideways to see all measurements. Products are listed in the order they finished.
| Product | Weight | Usb A Output | Usb C Output | Capacity | Charging Rate | Size | Wireless Charging |
|---|---|---|---|---|---|---|---|
| 1S22 Mini$9 | 106 g | 11.13 W (port 1), 11.25 W (port 2); 11 W total across both ports simultaneously (6.11 W + 4.91 W) | 6.86 W charging a Samsung S20+, 7.3 W charging a Chromebook (both described as very slow) | rated 18.5 Wh, delivered 14.31 Wh (about 77%, derived from the two stated figures) | 8.7 W (described as slow, no full recharge time given) | approximately 73 cubic cm (smallest of all 18) | not tested |
| 2Miady$14 | 116 g | 12.61 W | not tested | rated 18.5 Wh, delivered 14.29 Wh (about 77%, derived) | 6.4 W (slowest of the first-tested trio, no full recharge time given) | approximately 80 cubic cm | not tested |
| 3LOVELEDI | 215 g | 13.29 W (left port, best yet at the time), 13.43 W total across both ports simultaneously | not tested | rated 55.5 Wh, delivered 22.5 Wh (41%, explicitly stated) | 8.6 W, full recharge in 6 hours 23 minutes | not tested | not tested |
| 4IXNINE$17 | 372 g (heaviest of the brands tested up to that point) | 6.76 W + 8.49 W = just over 15 W total (best yet at the time) | 14.87 W, described as more than twice the S22 Mini's USB-C wattage | rated 99.2 Wh, delivered 54.8 Wh (55%, explicitly stated) | full recharge in just over 8 hours | not tested | not tested |
| 5KEOLL | not tested | 10.65 W + 9.93 W = just over 20 W total (best yet at the time); separately, single-port max cited later as 'just over 18 W', the highest single-port figure in the closing recap | 20.15 W, by far the best yet at the time; also cited in the closing recap as the highest combined 2-port total of any brand at just over 20 W | rated 95.5 Wh (derived from the stated 26.5 Wh / 28% pairing), delivered 26.5 Wh (28% of rating, explicitly stated, called out as a struggle) | full recharge in 3 hours 49 minutes (about an hour longer than the INIU B61) | not tested | not tested |
| 6INIU B61$20 | 206 g | approximately 15.36 W (the transcript also attaches a second, unclear '18 watts' figure in the same sentence; recorded both since it is unclear which is the precise reading) | just over 20 W, about the same as KEOLL | rated 37 Wh, delivered 32.7 Wh (89% of rating, explicitly stated as the best capacity-utilization result of all 18 brands) | full recharge in 2 hours 54 minutes (fastest of the first-tested charging round); also the 2nd-fastest of all 18 brands measured by minutes-per-watt-hour banked, at 5.3 minutes per Wh | not tested | not tested |
| 7INIU B41$22 | 209 g | 15.84 W | not tested | rated 37 Wh, delivered 29.92 Wh (81% of rating, in an explicit pairing against Anker Slim) | full recharge in about 4 hours 12 minutes, about the same as CFIAI | not tested | not tested |
| 8CFIAI$20 | 251 g | 17.72 W | approximately 16.4 W via its built-in USB-C cable; approximately 14+ W via its built-in lightning cable; approximately 15 W via its separate USB-C in/out port | rated 55.5 Wh, delivered 27.75 Wh (50%, explicitly stated) | 16.63 W, full recharge in 4 hours 7 minutes | not tested | not tested |
| 9iWalk$20 | 175 g | just over 14 W | not tested | delivered 22.9 Wh (69% of rating, rating not separately stated but consistent with its 9,000 mAh spec) | just under 7 W, full recharge in 6 hours 25 minutes (slowest of the final-tested pair) | not tested | not tested |
| 10FEOB$20 | 99 g (lightest of all 18) | 11.69 W (did not perform quite as well as iWalk) | not tested | rated 18.5 Wh, delivered 10.96 Wh (about 59%, derived; described as 'missing its rating by quite a bit') | 10.2 W, full recharge in 2 hours 33 minutes (fastest of the final-tested pair) | not tested | not tested |
| 11Baseus$20 | 249 g | 17.23 W (transcript reads '177.23 watts', almost certainly a garbled/duplicated digit; recorded as the corrected value with the discrepancy flagged) | just over 20 W, matching its advertised 20 W rating | rated 37 Wh, delivered approximately 30.46 Wh (transcript reads '3.46 hours', almost certainly a dropped leading digit on a Wh figure; 30.46/37 = 82%, matching the explicitly stated '82% of its rating, finished in second place') | full recharge in 3 hours 54 minutes | not tested | not tested |
| 12Anker Slim$22 | 242 g | 12.7 W before a voltage drop and power-down (only its USB-A port charges devices; the other two ports are for charging the bank itself) | not tested | rated 37 Wh, delivered 26.05 Wh (70%, explicitly stated) | described as very slow, full recharge in almost 5.5 hours | not tested | not tested |
| 13Durecopow | 229 g | 7.2 W + 6.05 W = just over 13 W total (quite a bit less than many other brands) | not tested | rated 74 Wh (derived), delivered 21.33 Wh (about 29%, derived) | 8.3 W, full recharge in 5 hours 6 minutes | not tested | not tested |
| 14Erkrist$26 | 328 g | 6.18 W + 5.14 W = just over 11 W total | just over 13 W | rated 95.5 Wh, delivered 50.76 Wh (53%, explicitly stated) | 10.65 W, full recharge in just under 8 hours | not tested | not tested |
| 15MREGB$30 (or $24 with a coupon) | 514 g (by far the heaviest of all 18) | 13.89 W single-port; 7.02 W + 7.16 W = about 14.18 W total (described as quite a bit less than some other brands despite its large claimed capacity) | not tested | rated 158.4 Wh; delivered figure is internally inconsistent in the transcript, stated once as 52.11 and once as 50.5, against a stated 38% of rating (neither raw figure divided by 158.4 cleanly produces 38%); recorded as a flagged discrepancy rather than resolved to one number | around 5.7 W (the slowest charging rate of all 18), full recharge in almost 13 hours 8 minutes (the slowest full recharge of all 18) | not tested | not tested |
| 16RGVOTA$30 | 430 g | approximately 6 W + 6 W = about 12 W total across 2 of its 4 ports | 12.38 W charging a Chromebook | rated 143.6 Wh (stated as the highest nominal rating of all 18 brands), delivered 65.4 Wh (2nd highest raw Wh delivered of all 18 per the closing capacity recap; about 46% of its rating, derived) | 8.3 W, full recharge in almost 10.5 hours (2nd slowest of all 18) | not tested | not tested |
| 17GOODaaa$32 (or $27 with a coupon) | 425 g | 17.83 W single-port (transcript reads '1783 watts', almost certainly a dropped decimal point, corrected here); 6.67 W + 10.73 W = almost 18 W total across two ports | 13.71 W; its built-in charging cords performed almost as well at 17.76 W | not tested | not tested | not tested | included and confirmed to work properly (no wattage given) |
| 18Anker 737$92 | 640 g (heaviest of all 18) | not tested | 93.6 W with a single USB-C device connected to a computer; 130 W total with two USB-C computers connected; just over 131 W total with two computers and a phone connected (close to its 140 W rating and by far the highest USB-C charging speed of all 18 brands) | delivered 68.7 Wh, the highest raw Wh delivered of all 18 brands per the closing capacity recap | recharged from 115 W up to about 131 W using a 140 W charger, fully charged in only about 48 minutes; described as the fastest of all 18 at less than 1 minute to bank a full Wh of energy | not tested | not tested |
How it was tested
- maximum single-port and dual-port simultaneous USB-A output wattage
- maximum USB-C output wattage (device charging where applicable)
- total watt-hour capacity delivered from a full charge versus each unit's rated capacity
- time and wattage rate to fully recharge a drained power bank
- physical size and weight measurements
- minutes required to bank one watt-hour of energy during recharging (efficiency metric)
Data notes and caveats
18 total products tested, matching the description's full list. This is a per-use-case, multi-pick verdict rather than a single winner: INIU B61 is the narrator's explicit personal favorite/top value pick, Baseus is named as also earning A's in every category (slightly less capacity than the INIU B61), and Anker 737 is named as the best choice 'if power bank size and money isn't the factor' (its $92 price is far above the rest of the field). The closing verdict also contains one all-A-grade brand introduced by a garbled name ('andil'/'andol') described as 'a great battery bank for under $20,' distinct from the separately-named INIU B61 and Baseus that follow it in the same paragraph; this could not be confidently resolved to any specific brand in the description's 18-brand list (the phonetically closest match, KEOLL, is ruled out because KEOLL's own capacity result was explicitly called a struggle at only 28% of rating, contradicting an all-A grade) and is left unassigned rather than guessed. Two brands (KEOLL, Durecopow) are missing their entire price/product-introduction paragraphs from the transcript, a real gap rather than a caption garble. One brand (MREGB) has an internally inconsistent capacity reading (two different Wh figures given, neither matching the stated 38%). GOODaaa's own delivered capacity figure is never stated in the transcript despite being paired against MREGB in that test. Given the volume of derived/flagged/missing data points relative to a typical video in this corpus, confidence is set to low on data-quality grounds even though the overall brand identities and most individual test results are well-supported.