ESR review
Updated September 30, 2026 · GizmoCue Editorial Team · Facts checked September 30, 2026
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Our verdict
ESR suits shoppers who want a single brand for laptop, phone and wireless charging, with GaN silicon across the range. Maximum output reaches 100 W, above the median for this category. INIU covers power banks and cables; DeWalt covers tool batteries.
Key facts
- Best for
- A single supplier for laptop, phone and wireless charging sold in many markets.
- Highest continuous output (W)
- 100 (Source, checked September 30, 2026)
- GaN chargers
- Yes (Source, checked September 30, 2026)
- Markets
- US, CA, MX, GB, NO, CH, DE, FR, IT, ES, GR, NL, DK, CZ, BE, PL, PT, AT, SE, FI, IE, HU, SK, SI, LU, BG, EE, HR, LT, LV, RO, AU, JP, IN, NZ, MY, PH, TH, ID, SG, KR, VN, BH, AE, SA, TR, IL, JO, OM, QA (Source, checked September 30, 2026)
- Support channels
- Help-centre (Source, checked September 30, 2026)
- Products
- Charger, Wireless charger
- Official website
- esrtech.com
Pros and cons
Pros
- Output reaches 100 W, which sits above the 145 typical of the wider charging category and covers slim laptops.
- GaN silicon is part of the build, and 60.5% of brands ranked in this category use the same silicon.
- Wired and wireless chargers sit in the same range, so a desk and a bedside table can draw on the same supplier: charger and wireless charger.
- Sales reach US, CA and MX, a spread that makes a single charger a practical choice for frequent travel rather than a per country purchase.
Cons
- A power bank is not among charger and wireless charger, while INIU and Akkuk.hu each list one under charger, power bank and cable and charger, power bank and cable.
- A cable is not among charger and wireless charger either, though charger, power bank and cable and charger, power bank and cable both include one for a fuller basket.
- Support runs on help centre alone, so buyers wanting a live channel handle every question through self service articles.
- Output of 100 W is modest beside 555, the figure the stronger end of this category reaches for demanding workstations.
Ready to try ESR?
Who it suits
- Laptop and phone buyers who want a single supplier for plugged and magnetic charging, since charger and wireless charger covers both.
- Frequent travellers who want a charger already sold in the United States, CA and MX, rather than searching for a local seller on arrival.
- Shoppers who want GaN silicon for a cooler, smaller brick and expect the mainstream standard in this category.
Who should look elsewhere
- Anyone who needs power away from a socket, because a power bank is not among charger and wireless charger; INIU lists one under charger, power bank and cable.
- Buyers who want cables in the same basket, which INIU and Akkuk.hu include under charger, power bank and cable and charger, power bank and cable.
- Tool users charging battery packs, where DeWalt lists a charger under charger rather than consumer devices.
Core features
Maximum output is 100 W, and that is the headline figure to match against the device you plug in. It covers a slim laptop alongside a phone, and it keeps the charger small enough to carry, though buyers with larger machines should check the port layout before buying. GaN silicon is confirmed as part of the build. Gallium nitride replaces the older material in the switching chip, so the charger runs cooler under load and can pack more ports into a body closer to a phone than to a mains brick. Neither number tells you how many ports a given model carries or how it behaves when several devices charge at once, so the useful comparison is output against your devices, port layout, and the size you can live with in a bag. On balance the range suits charging from a socket: desk, bedside and travel bag all draw on the same brand, while the portable side of charging sits with ranges that sell a battery pack.
How ESR compares
TESmart
UMEVO
Joom
Nubia
Logitech
Antigravity
Xistore BY
Snapmaker US
ESR EU
Snapmaker Shop
Minisforum EU
Uperfect Monitor
XPPen
Frequently asked questions
What is the highest output an ESR charger delivers?+
Maximum output is 100 W. That is above the 145 typical of the wider charging category, though the strongest entries reach 555. Match the figure to the device you charge rather than chasing the largest number available.
Does ESR use GaN in its chargers?+
GaN is confirmed for ESR. Gallium nitride keeps the switching chip cool and lets more power sit in a smaller housing than older silicon designs. It is the mainstream choice in this category, with 60.5% of ranked brands using the same silicon, so it no longer separates maker from maker.
Does ESR sell power banks?+
No power bank appears in charger and wireless charger, which covers a charger and a wireless charger. INIU lists a power bank and a cable alongside chargers under charger, power bank and cable, and Akkuk.hu does the same under charger, power bank and cable. Buyers needing power away from a socket should start there.
Which countries can I buy ESR chargers in?+
Sales cover US, CA and MX, a spread across Europe, Asia, the Middle East and Australia as well as North America. That reach makes the same model a practical choice for frequent travel. Plug types and mains voltage still differ by market, so check what your destination needs before packing.
Can ESR charge a phone wirelessly?+
Yes. A wireless charger sits in charger and wireless charger next to the wired charger, so a desk and a bedside table can share the same supplier. Wireless charging is close to standard here, since 100% of brands ranked in this category sell it. Compatibility depends on your handset.
How do I get help from ESR?+
Support runs through help centre, the self service route. A help centre handles setup questions and fault checks, and it is the most common channel in this category at 93.4%. Buyers who want live chat or a phone line should compare other ranges first.
Is ESR aimed at laptops or phones?+
Both, though output of 100 W sets the ceiling. Laptop charging is a smaller part of this category than phone charging, with 3.2% of ranked brands listing laptop chargers. A phone buyer has more choice, and a laptop buyer fewer ranges to weigh against ESR.
Can I buy ESR for tool batteries?+
Not from this range, which covers consumer chargers and wireless chargers under charger and wireless charger. DeWalt lists a charger aimed at tool batteries under charger. Anyone charging power tool packs belongs with that specialist rather than with a phone and laptop supplier.
Sources
- esrtech.com checked September 30, 2026
Backs: GaN chargers, Markets, Highest continuous output (W), Products, Support channels
“products/white-45w-avs-gan-retractable-wall-charger-us-plug-xtend (Xtend 45W Retractable Charger)”
Compiled from 1 source page, checked September 30, 2026. We did not open an account.
Not confirmed yet: Warranty.
Related by the facts
ESR
A single supplier for laptop, phone and wireless charging sold in many markets.