Black & Decker LST420 Storage Recommendations, Charging Procedure, Important Charging Notes

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WARNING: Fire hazard. Do not store or carry battery so that metal objects can contact exposed battery terminals. For example, do not place battery in aprons, pockets, tool boxes, product kit boxes, drawers, etc., with loose nails, screws, keys, etc. Transporting batteries can possibly cause fires if the battery terminals inadvertently come in contact with conductive materials such as keys, coins, hand tools and the like. The US Department of Transportation Hazardous Material Regulations (HMR) actually prohibit transporting batteries in commerce or on airplanes (i.e., packed in suitcases and carry-on luggage) UNLESS they are properly protected from short circuits. So when transporting individual batteries, make sure that the battery terminals are protected and well insulated from materials that could contact them and cause a short circuit.

NOTE: LI-ION batteries should not be put in checked baggage.

Storage Recommendations

1. The best storage place is one that is cool and dry away from direct sunlight and excess heat or cold.

2. Long-term storage will not harm the battery pack or charger as long as the battery is not depleted.

Charging Procedure

Black and Decker chargers are designed to charge Black and Decker battery packs in 5-10 hours depending on the pack being charged: LBXR2020 (5 hrs), LB2X4020 (10 hrs). The standard charger provided will charge a fully depleted battery in about 10 hours.

1. Plug the charger into an appropriate outlet before inserting the battery pack.

2. Slide the charger onto the battery pack as shown in figure B.

3. The green LED will flash indicating that the battery is being charged.

4. The completion of charge is indicated by the green LED remaining on continuously. The pack is fully charged and may be used at this time or left on the charger.

Recharge discharged batteries as soon as possible after use or battery life may be greatly diminished.

Leaving the battery in the charger

The charger and battery pack can be left connected with the green LED glowing indefinitely. The charger will keep the battery pack fresh and fully charged.

Important Charging Notes

1. Longest life and best performance can be obtained if the battery pack is charged when the air temperature is between 60°F and 80°F (16°- 27°C). DO NOT charge the battery pack in an air temperature below +40°F (+4.5°C), or above +105°F (+40.5°C). This is important and will prevent serious damage to the battery pack.

2. The charger and battery pack may become warm to touch while charging. This is a normal condition, and does not indicate a problem. To facilitate the cooling of the battery pack after use, avoid placing the charger or battery pack in a warm environment such as in a metal shed, or an uninsulated trailer.

3. If the battery pack does not charge properly:

a. Check current at receptacle by plugging in a lamp or other appliance.

b. Check to see if receptacle is connected to a light switch which turns power off when you turn out the lights.

c. Move charger and battery pack to a location where the surrounding air temperature is approximately 60°F - 80°F (16° - 27°C).

d. If charging problems persist, take the tool, battery pack and charger to your local service center.

4. The battery pack should be recharged when it fails to produce sufficient power on jobs which were easily done previously. DO NOT CONTINUE to use under these conditions. Follow the charging procedure. You may also charge a partially used pack whenever you desire with no adverse affect on the battery pack.

5. Foreign materials of a conductive nature such as, but not limited to, steel wool, aluminum foil, or any buildup of metallic particles should be kept away from charger cavities. Always unplug the charger from the power supply when there is no battery pack in the cavity. Unplug charger before attempting to clean.

6. Do not freeze or immerse charger in water or any other liquid.

WARNING: Shock hazard. Do not allow any liquid to get inside charger. Never attempt to open the battery pack for any reason. If the plastic housing of the battery pack breaks or cracks, return to a service center for recycling.

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Contents 20V max* Trimmer/Edger Page To Reduce Risk of Injury Important Safety Warnings and InstructionsRead All Instructions Functional Description figure a Important Safety Instructions FOR BATTERY CHARGERSAn extension cord must have adequate Wire size AWG or American Wire GaugeDo not use an extension cord unless it Is absolutely necessary. Use of improperStorage Recommendations Charging ProcedureImportant Charging Notes Adjusting the position of the auxilIary handle Installing and Removing the Battery PackLI-ION Battery Packs and Chargers Description Cat. # Installing the guardCONVERT TO EDGING MODE Switching on and offAccelerator Switch & Runtime Extension Mode Operating the TrimmerREPLACING THE SPOOL Replacement AccessoriesAutomatic line feed does not work Service InformationRbrc Seal Trimmer runs slowlyFull Two-Year Home Use Warranty TAILLE-BORDURE / COUPE-BORDURE 20v Max Réduction DES Risques DE Blessures Lignes directrices en matière de sécurité définitionsConserve Estas Instrucciones Avertissement Description Fonctionnelle Figure aChargement décrites. Lire toutes les directives Directives DE Sécurité Importantes Pour LES BLOCS-PILESProcédure de charge Recommandations en matière de rangementRemarques importantes sur le chargement Réglage de la Hauteur Insertion et retrait du bloc-pilesFonctionnement Mode de coupe-borduresFonctionnement DU TAILLE-BORDURES Remplacer LA Bobine Accessoires DE RechangeLe sceau Srprcmc EntretienPage DE Podadora / Bordeadora 20V MAX Advertencia Pautas DE SEGURIDAD/DEFINICIONESReducir EL Riesgo DE Lesiones Page Instrucciones de seguridad importantes para los Descripción DE LAS Funciones Figura aCargadores de baterías Lea todas las instrucciones Procedimiento de carga Recomendaciones con respecto al almacenamientoNotas importantes sobre la carga Instalación DEL Mango Auxiliar Figuras F Y G ENSAMBLADO/REGULACIONESInstalación y retiro del paquete de baterías Descripción De catFuncionamiento DE LA Podadora FuncionamientoAjuste DE LA Altura DE LA Herramienta Figura H Encendido y apagadoReemplazo DE Carretes BordeadoAccesorios de repuesto Cuerda de corte/ALIMENTACIÓN DE LA CuerdaEl sello Rbrc Información de mantenimiento Detección de problemasGarantía completa de dos años para uso en el hogar Esta Garantia no Aplica Cuando Años DE GarantiaSolamente Para Propositos DE Mexico
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LST400R, LST400, LST420R, LST420 specifications

Black & Decker is recognized for producing high-quality outdoor power tools, and their string trimmers, particularly the LST420, LST420R, LST400, and LST400R models, are exemplary of their innovation and commitment to efficiency. These cordless electric trimmers combine robust performance with user-friendly features, catering to both novice and experienced gardeners.

The LST420 and LST420R models feature a powerful 40V lithium-ion battery, ensuring extended run times and plenty of cutting power. Both models utilize a premium 12-inch cutting width, allowing users to trim and edge grass and weeds efficiently. Weighing in at around 6.5 pounds, these trimmers are lightweight, making them easy to maneuver and reducing user fatigue during extended periods of use.

One of the standout features of the LST420 and LST420R is the automatic feed spool, which continuously feeds the line when needed, eliminating interruptions during work. Furthermore, users can easily switch between trimming and edging modes with a simple turn of the shaft, thanks to the innovative pivoting head design. This feature enhances versatility, allowing users to achieve a professional finish on various landscaping tasks.

The LST400 and LST400R also sport the reliable 40V lithium-ion battery and 12-inch cutting width. However, these models feature a slightly different design. The LST400 is designed with a telescoping shaft that can be adjusted for different heights, offering added comfort and control for users of varying statures. With the addition of a secondary handle, it provides improved stability during operation.

All four models boast a relatively quiet operation compared to gas-powered trimmers, which adds convenience to residential areas while minimizing noise pollution. The efficient brushless motor technology found in these trimmers enhances durability and runtime, further highlighting Black & Decker's commitment to sustainability and user convenience.

In summary, the Black & Decker LST420, LST420R, LST400, and LST400R offer a blend of power, versatility, and user-friendly features. With their lightweight designs, automatic feed spooling, adjustable shafts, and efficient battery systems, they are ideal choices for maintaining a neat and tidy lawn while ensuring comfort and ease of use for the operator. These trimmers embody the brand's dedication to quality and innovation in outdoor power tools, making them a reliable choice for homeowners and gardening enthusiasts alike.
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