12V 8" Cordless String Trimmer


  • Black & Decker’s electric lawn and garden equipment releases zero emissions in your yard, helping to reduce your carbon footprint
  • Lightweight design for quick trimming after mowing
  • Clean electric power means no oil changes, tune-ups or trips to the service station
  • Bump-type feed spool advances line as-needed
          4 stars 3 Reviews Print This Page
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Product Details

Key Features

  • Lightweight design
  • Clean electric power
  • Bump-type feed spool


  • Quick trimming after mowing
  • No oil. tune-ups or trips to the service station
  • Easily advance line as-needed

What's Included

  • CST800 Grass Trimmer
  • Wallmount Overnight Charger


  • Great for Trimming Urban Size Yards After Mowing.

Technical Specifications

  • Voltage12 V
  • rpm8500 rpm
  • Cutting Swath8 "
  • Line Diameter0.065 "
  • Feed SystemBump
  • Weight6.5 lbs
  • Power SourceElectric

2 Year Limited Warranty

Black & Decker (U.S.) Inc. warrants this product for two (2) years against any defects in material or workmanship. The defective product will be replaced or repaired at no charge in either of two ways.

The first, which will result in exchanges only, is to return the product to the retailer from whom it was purchased (provided that the store is a participating retailer). Returns should be made within the time period of the retailer?s policy for exchanges (usually 30 to 90 days after the sale). Proof of purchase may be required. Please check with the retailer for their specific return policy regarding returns that are beyond the time set for exchanges.

The second option is to take or send the product (prepaid) to a Black & Decker owned or authorized Service Center for repair or replacement at our option. Proof of purchase may be required. Black & Decker owned and authorized Service Centers are listed under "Tools-Electric" in the yellow pages of the phone directory.

This warranty does not apply to accessories. This warranty gives you specific legal rights and you may have other rights which vary from state to state or province to province. Should you have any questions, contact the manager of your nearest Black & Decker Service Center. This product is not intended for commercial use.

LATIN AMERICA: This warranty does not apply to products sold in Latin America. For products sold in Latin America, check country specific warranty information contained in the packaging, call the local company or see the website for warranty information.

    Instruction Manuals


    Ratings & Reviews

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    User Reviews for 12V 8" Cordless String Trimmer

    0 people recommended the following review
    pattipilgrim Wrote:
    worked great for a month
    I threw out the receipt and box because it did work great for a month.



    doesnt work anymore

    6/28/2012 10:08:59 PM

    0 people recommended the following review
    mschovey Wrote:
    I just replaced the battery after 12 years. Still works great and has enough power to trim the entire yard. Keep it charged and I think it might last forever!! I have a few friends with other brands and they've had to replace theirs after only a few years.

    The size and weight. Ease of use. Battery lasts about an hour.



    8/28/2011 12:58:09 PM

    0 people recommended the following review
    gscottmaine Wrote:
    This trimmer is perfect for the job that I bought it to do. It has just enough power to trim around my foundation of the house, along with the shed and screenhouse. If it had a cord, it would be a big hassle!

    The size and weight. The battery has just enough power to do what I want it to do without a recharge.



    10/23/2010 11:15:27 AM

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