Two 6Ah packs and a fast charger in the box is what separates this from the rest of Husqvarna's pro battery range, and for a climbing saw it is the right way to sell one — a two-pack rotation is the difference between a battery saw that works a full day and one that strands you mid-canopy. The tool is the top-handle version of the clutched 542i XP: 2.4 hp, 79 ft/s chain speed, a centrifugal clutch so a pinched chain does not shock the drivetrain, and 6.39 lb before a pack goes in. Husqvarna positions it as 40cc gas equivalent, which for in-tree work is genuinely enough. It replaces the T540i XP, which no longer has a US product page. At $1,120 it costs more than most gas top-handles including the T525, and the trade is fumes and noise against money and runtime management.

Best for: Professional climbing crews who want a full-day battery top-handle with the runtime rotation already in the box.

Specifications

Engine class: 30cc class (placed by shipped bar length)
Voltage: 40 V
Kit battery: 6 Ah
Bar length: 12 in
Bar range: 12-16 in
Single-pass cut: about 10 in (bar minus 2)
Chain: .325" mini pitch / .043" gauge (X-Cut SP21G)
Weight: 6.39 lb, tool only, without battery or cutting equipment
Power type: Battery
Use case: Arborist
Warranty: 2-year commercial (Husqvarna limited)
Model: T542i XP

Manufacturer figures except the engine class and single-pass cut, which are derived here. What each spec means

Two 6Ah packs and fast charger included
Clutched, 40cc-gas equivalent
6.39 lb bare tool

Where it is strong

Two 40-B220X 6Ah packs plus a 40-C500X fast charger included — a working rotation, not a starter pack
Centrifugal clutch means a pinched chain does not transmit shock straight into the drivetrain
2.4 hp and 79 ft/s chain speed, which Husqvarna rates as 40cc gas equivalent
6.39 lb bare, and no fumes or hot muffler to manage on rope
Available in 12, 14 or 16-inch bars, so one tool covers pruning through small removals
Direct replacement for the T540i XP, which is no longer listed in the US

Where it falls short

$1,120 is roughly $490 more than the gas T525 before you account for anything
91 dB class output still needs hearing protection — quieter than gas is not quiet
16-inch maximum bar, so takedowns still need a rear-handle on the ground
.043 chain gauge is the expensive, less-available option
For trained climbers only — top-handle saws carry the highest injury rate in chainsaw work

Written from the spec sheet and the maker's documentation; owner reports for this model were too thin to summarize.