Charmast 26800 at a glance
In short: the Charmast 26800 scores 7,8/10 in our power bank XL review (from €26). Biggest strength: ultra-slim (14 mm). Main compromise: only 15 W output.
At 16.5 × 8.2 × 1.4 cm it is one of the more compact devices in its class. All technical data comes from manufacturer data sheets and the Amazon catalogue and was cross-checked before publication. The rating is an editorial overall judgement based on this data, not an assessment from use in practice.
Charmast 26800: what works and what doesn't?
What works well
- Ultra-slim (14 mm): Slimmest power bank in the comparison, trouser-pocket friendly
- 4 devices at once: 1× USB-C + 3× USB-A
- Very cheap (from €26): Cheapest XL power bank in the comparison
- 99 Wh flight-friendly: Just under the limit, allowed in hand luggage
- Light (338 g): Compact despite 26,800 mAh
Points of criticism
- Only 15 W output: No real PD, laptops will NOT charge
- Slow phone charging: 2 to 3 hours instead of 1 hour with PD
- Micro-USB input (old): Slow recharging
- No display: Only a 4-LED indicator
- Not for modern fast-charging devices: Wastes the PD potential of newer phones
Specifications in detail
| Manufacturer | Charmast |
| Model | 26800 Slim |
| Device type | Budget XL power bank, ultra-slim |
| Capacity | 26,800 mAh / 99 Wh |
| Max. power | 15 W (no real PD) |
| Ports | 1× USB-C (in/out), 3× USB-A, Micro-USB in |
| Charge simultaneously | 4 devices |
| Overall height | 14 mm, ultra-slim |
| Weight | 338 g |
| Dimensions | 16.5 × 8.2 × 1.4 cm |
| Allowed on flights | Yes (99 Wh, just under 100 Wh) |
| Warranty | 18 months |
Build quality & everyday use
What carries the Charmast 26800 in everyday use: Ultra-slim (14 mm) (slimmest power bank in the comparison, trouser-pocket friendly) and 4 devices at once (1× USB-C + 3× USB-A). You have to be honest about the weaknesses: only 15 W output. No real PD, laptops will NOT charge.
If you set the device up to save space, make sure it stands on a stable, level surface with some air around it. This protects the mechanics and electronics in continuous use.
Who is the Charmast 26800 suited to? (Buying advice)
Perfect for:
- ✓Charging phone + headphones + smartwatch
- ✓Budget buyers who need a backup
- ✓Fans of the pocket format
- ✓Festival/outdoor users (many phone charges)
- ✓Air travellers on a tight budget
Less suitable for:
- ✕Laptop users (no PD, only 15W)
- ✕Anyone who needs fast charging
- ✕Anyone who wants a display
- ✕Owners of fast-charging phones
Charmast 26800 compared with alternatives
Head-to-head with the top alternatives from our large power banks comparison
| Feature | Charmast 26800 | INIU P63-E1 | Anker 737 | UGREEN Nexode 145W |
|---|---|---|---|---|
| Capacity | 26,800 mAh / 99 Wh | 25,000 mAh / 92.5 Wh | 24,000 mAh / 86.4 Wh | 25,000 mAh / 92.5 Wh |
| Max. power | 15 W | 100 W | 140 W | 145 W |
| Ports | 1× USB-C, 3× USB-A | 2× USB-C, 1× USB-A | 2× USB-C, 1× USB-A | 2× USB-C, 1× USB-A |
| Weight | 338 g | 392 g | 630 g | 498 g |
| Allowed on flights | Yes (99 Wh) | Yes (92.5 Wh) | Yes (86.4 Wh) | Yes (92.5 Wh) |
| Price | from €26 | from €60 | from €75 | from €49 |
Similar large power bank models
Frequently asked questions about the Charmast 26800
Can I charge a laptop with the Charmast 26800?
Is the Charmast flight-friendly?
Why is it so cheap (€26)?
How many phone charges does it manage?
How long does recharging take?
Can I really charge 4 devices at once?
Verdict: is the Charmast 26800 worth it?
A solid option with a clear profile: if you can live with only 15 W output, from €26 you get one thing above all: ultra-slim (14 mm). Best suited to: charging phone + headphones + smartwatch.
If you want to compare alternatives, you will find detailed data and reviews on our large power banks comparison page.
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