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BEHT100 vs HJ604C: Choose the Cutting Format and Power Routine

Choose BEHT100 for hedge-focused work when its 16-inch blade and a managed outdoor cord fit the location. Choose HJ604C for small shrub touch-ups plus grass-edge detail with its two blades. HJ604C avoids a cord while cutting, but its integral battery requires charging breaks.

Published by Pickoryx · Published 2026-10-05

Source checked 2026-10-05 23:04 UTC

Products compared

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The buying question

Do you need a longer hedge blade or two detail-cutting attachments, and can your work area accommodate a power cord?

BEHT100 combines a 16-inch hedge blade with corded power. HJ604C combines shorter hedge and grass blades with an integral battery that must be charged in the tool.

Quick verdict

Choose BLACK+DECKER BEHT100 if

  • You want a longer hedge blade for normal shrubbery within the 5/8-inch stem limit.
  • The work area has a suitable outlet and an extension-cord route you can keep clear of the blade.
View BLACK+DECKER BEHT100 on AmazonPaid link

Choose Sun Joe HJ604C if

  • You need both grass-shear and short hedge-trimmer attachments.
  • You prefer cordless touch-ups and can set the tool aside to recharge.
View Sun Joe HJ604C on AmazonPaid link
When to skip: Skip HJ604C for branches over its 0.3-inch hedge-blade limit. Skip BEHT100 if you need a grass-shear attachment or cannot arrange a suitable cord route. Skip either for stems beyond its limits or work requiring unsafe reaching.
When the recommendation changes
  • The job needs a grass-shear attachment.
  • The stems exceed either model’s stated cutting limit.
  • A suitable extension-cord route is unavailable.
  • You need a tool with interchangeable spare batteries or a verified runtime.

The differences that matter

Hedge Runs Or Grass And Detail Tasks

BLACK+DECKER BEHT100

A 16-inch hedge blade for normal residential shrubbery. The manual limits stems to 5/8 inch (16 mm) and prohibits adding accessories or attachments.[1, 2]

Sun Joe HJ604C

Interchangeable 4-inch grass-shear and 6-inch hedge-trimmer blades for light residential work. The grass blade also handles finer hedge detail; the hedge blade has a stated 0.3-inch (8 mm) cutting limit.[3, 4]

What this changes: BEHT100 fits a hedge-focused job where you want the longer blade. HJ604C fits a mix of small shrub touch-ups and grass-edge detail. Match actual stems to each limit; blade length and capacity do not establish speed, cut quality or ease of use.[1, 2, 3, 4]

The better fit depends on your priorities

Corded Supply Or Integral Battery

BLACK+DECKER BEHT100

Runs from a 120 V corded supply. Plan an outdoor-rated extension cord of the correct gauge and length, use the cord retainer, and keep the cord behind the trimmer and away from the cut.[1, 2]

Sun Joe HJ604C

Has an integral 7.2 V lithium-ion battery. The supplied charger plugs into the tool; charging is indoors, and the manual prohibits using the tool while it charges.[3, 4]

What this changes: Choose the corded arrangement when the hedge has a suitable outlet and cord route. Choose the battery arrangement when avoiding a working cord matters and you can stop for charging. An existing removable tool battery does not replace this documented charging routine.[1, 2, 3, 4]

The better fit depends on your priorities

Best for your routine

Hedge-focused work near a suitable power outlet

Best fit: BLACK+DECKER BEHT100

Based on listed features, not comparative testing.

The 16-inch BEHT100 blade fits the longer hedge-tool format without a battery-charging routine. The tradeoff is managing the outdoor cord while keeping both hands on the handles.

View BLACK+DECKER BEHT100 on AmazonPaid link

Small grass-edge and shrub touch-ups away from a convenient cord route

Best fit: Sun Joe HJ604C

Based on listed features, not comparative testing.

HJ604C supplies both blade types and works from its integral battery. Accept the shorter hedge blade, its smaller stated stem limit and time out of use for charging.

View Sun Joe HJ604C on AmazonPaid link

Value and trade-offs

One or both observed offers have eligibility conditions, so no unrestricted price difference is shown.

Pay for the cutting format and power arrangement that fit the job. Include any suitable outdoor cord in the BEHT100 setup plan, and verify HJ604C includes its matched charger and both blades.

There is not enough price-history evidence to recommend buying now or waiting.

Limitations

  • No hands-on comparison established cutting speed, finish, runtime, comfort, durability or a safety winner. Published stem limits are boundaries, not guarantees for every plant.
  • HJ604C’s MR9 manual gives inconsistent charging-time and long-term charger-storage instructions. No fixed recharge time or indefinite plugged-in storage recommendation is made here; confirm the instructions for the supplied tool with the manufacturer.
  • The comparison covers BEHT100 and HJ604C. It does not transfer BEHTS125’s saw blade, a larger Sun Joe hedge trimmer’s capabilities, or another model’s charger. Current retail bundle contents and condition still need checking.
  • These buying considerations do not replace the operating manuals. Keep the cutting area clear, use the specified protective equipment, avoid wet conditions, and follow each tool’s stopping and power-disconnection instructions before handling blades.

Questions shoppers ask

Can I convert BEHT100 into grass shears?

Its manual prohibits accessories or attachments. HJ604C is the one in this pair with an explicitly documented grass-shear conversion. Change blades only with the unit off, the blades fully stopped and protective gloves on, following its fitting instructions.

Can HJ604C run from its charger when the battery is low?

No. The manual says not to use the tool during charging. Use the matched charger indoors and plan to pause the job; it is not a corded-use substitute when connected.

What should I check about replacement parts?

HJ604C’s manual identifies HJ604C-1.10 for the grass blade, HJ604C-1.11 for the hedge blade and HJ604C-CHRG for the charger. Those identifiers help you check compatibility, but do not establish current availability. Avoid assuming a similar-looking charger or another Sun Joe blade will fit.

Methodology and sources

We matched each tool to its cutting tasks, stem limits and power routine, then checked handling and charging requirements. Manufacturer specifications were not treated as measured cutting results.

AI assisted with reading the documentation and organizing the comparison.

View 4 sources
  1. 1.BLACK+DECKER BEHT100 16-inch Electric Hedge TrimmerBLACK+DECKER · Official specifications · Source checked 2026-10-05 23:00 UTC
    Evidence used on this page
    • Details & Features; Specs & Parts; model BEHT100: Lists the 16-inch hedge blade, 5/8-inch stem limit, cord retention and 120 V corded supply.
  2. 2.BLACK+DECKER BEHT100 / BEHTS125 / BEHT150 Instruction Manual, October 2017BLACK+DECKER · Official specifications · Source checked 2026-10-05 23:01 UTC
    Evidence used on this page
    • English pages 3–7; cover; final publication page, N522923 REV00: The manual includes BEHT100 and US instructions. Explains guard assembly, two-handed grip, outdoor cord selection, disconnecting before clearing or maintenance, and restrictions on attachments. The saw-blade instructions apply to BEHTS125 only.
  3. 3.Sun Joe HJ604C Cordless Grass Shear and Hedge TrimmerSnow Joe / Sun Joe · Official specifications · Source checked 2026-10-05 23:00 UTC
    Evidence used on this page
    • Product description; technical specifications; model HJ604C: Identifies HJ604C with interchangeable 4-inch grass and 6-inch hedge blades, a rechargeable battery, blade covers and charger.
  4. 4.Sun Joe HJ604C Operator’s Manual, MR9, 2021Snow Joe / Sun Joe · Official specifications · Source checked 2026-10-05 23:01 UTC
    Evidence used on this page
    • English pages 1–9 and 12: task limits, components, blade fitting, charging and parts: Covers light residential shrub and lawn-edge work, the integral battery and matched indoor charger, stopped-blade handling, and named replacement parts. Charging-time and long-term storage passages differ, so they do not establish a single charging schedule.

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