Braun AIO7540 Black, Blue 14 Lithium-Ion (Li-Ion)

Braun AIO7540 Black, Blue 14 Lithium-Ion (Li-Ion)

Name: Braun AIO7540 Black, Blue 14 Lithium-Ion (Li-Ion)
Brand: Braun

All-in-one trimmer, 14 length settings, 120 min runtime and 11 accessories.

Manufacturer reference AIO7540

70 /100 Its best score: the best battery life, rated "good" on its category’s scale.

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What the Braun AIO7540 Black, Blue 14 Lithium-Ion (Li-Ion) is worth

The Braun AIO7540 is a rechargeable multi-function trimmer designed for full-body use. Powered by a Lithium-Ion battery, it delivers 120 min of runtime and recharges in 1.5 h. A quick 5 min charge enables immediate use. It features 14 length settings ranging from 0.5 mm to 2.1 cm and includes a precision trimmer.

It achieves an overall score of 70/100, with correct ratings across all criteria. The 120 min runtime and 14 settings match market medians. The 0.5 mm cutting precision and 1.5 h charging time are also in line with average performance. The device is waterproof and features charging indicators.

Supplied with a charging station, 9 combs for beard, body, ear, eyebrow and nose, a storage pouch and a cleaning brush, this set totals 11 accessories. Compact and lightweight at 141 g, it suits universal use for those seeking an all-in-one solution without above-average performance requirements.

Its scores, criterion by criterion

Scores out of 100, calculated from the datasheet and compared with the market. The full method is public.

Battery life Good

120 min · category median: 120 min

Precision Fair

0.5 mm · category median: 0.5 mm

Settings Fair

14 · category median: 14

Charging Fair

1.5 h · category median: 1.2 h

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Documents

What the manufacturer publishes about this model. Each document opens in a new tab.

User manual PDF 4.4 MB

Specifications

Performance 7

Product colour Black, Blue

Number of length steps 14

Suitable for entire body Yes

Minimum hair length 0.5 mm

Maximum hair length 2.1 cm

Suitable for Universal

Precision trimmer Yes

Ergonomics 2

Built-in display No

Waterproof Yes

Indication 1

LED indicators Yes

Power 9

Power source Battery

Operating time 120 min

Rechargeable Yes

Battery type Built-in battery

Charging time 1.5 h

Fast charging Yes

Fast charging time 5 min

AC input voltage 100 - 240 V

AC input frequency 50 - 60 Hz

Weight & dimensions 4

Width 42 mm

Depth 41 mm

Height 156 mm

Weight 141 g

Packaging data 1

Package weight 520 g

Packaging content 9

Attachments quantity 11

Base station Yes

Base station functions Charging

Cleaning brush Yes

Hair comb Yes

Storage pouch Yes

Attachment combs Beard, Body, Ear, Eyebrow, Nose

Charger Yes

Combs quantity 9

Battery 1

Battery technology Lithium-Ion (Li-Ion)

Who this model suits

It’s for you if

Your first criterion is the battery life: it happens to be its best score.

You want a good score on the precision, above its category average.

You prefer a model tracked across several merchants, to buy at the right time.

Skip it if

Its lowest score is on the charging: skip it if that is decisive for you.

Frequently asked questions

Answers drawn from this model’s datasheet.

The Braun AIO7540 offers 120 min of autonomy during continuous use, which matches the market median. It fully recharges in 1.5 h, with a 5 min quick charge function for emergency use.

Yes, this trimmer is waterproof and can be used in the shower. It is suitable for the whole body and comes with specific combs for beard, body, ears, nose and eyebrows.

The trimmer offers 14 length settings ranging from 0.5 mm to 2.1 cm. It comes with 9 different combs and a precision trimmer to suit all cutting needs.