24V-SB10-LTE Cordless Sharper Blade Trimmer + Edger Sun Joe® 24V-SB10-LTE Cordless SharperBlade Stringless Lawn Trimmer + Edger | Product Guide No strings attached — cordless trimming and edging with SharperBlade® cutting.The Stringless Lawn Trimmer + Edger is designed for trimming grass, managing weeds, and edging along flowerbeds, sidewalks, and walkways. It features a 24V 2.0 Ah lithium-ion battery, 400 W motor, 10-inch cutting diameter, Twist-N-Groom™ 180° rotating head, telescoping shaft, adjustable auxiliary handle, flower guard, SharperBlade™ mini trimmer blade, and grass blades for quick touch-ups.🔋 24V Cordless Power🌱 Stringless Cutting↻ Twist-N-Groom™ HeadMeet the 24V-SB10-LTEKey Components🔋24V battery compartment — holds the included 24VBAT-LTE battery🖐️Handle + safety button — two-step start helps prevent accidental operation▶️On/Off switch — starts and stops the trimmer when squeezed or released📏Telescoping pole — adjusts from 36.6 in. to 48.4 in.🔒Telescopic shaft knob — unlocks and locks the pole length↻Twist-N-Groom™ collar — rotates the head 180° from trimming to edging🛡️Safety guard — helps protect from thrown debris🌷Edger guide + flower guard — helps protect plants and guides edging✂️SharperBlade™ mini blade — rigid stringless blade for trimming, edging, mowing, sweeping, and scalping🌱Grass blades — best for quick trimming and post-mowing touch-ups🧰Storage compartment — stores grass blades and blade accessories on the pole🔌24V charger — charges the included battery in about 1 hr 20 minTechnical SpecificationsSpecification24V-SB10-LTEProduct TypeCordless grass trimmer + edgerBest UseMedium-sized lawns, flower beds, grass trimming, edging, and post-mowing touch-upsPower Type24V cordless lithium-ion batteryMotor400 WBattery Voltage Max24V D.C. max; nominal voltage under typical load is 21.6VBattery Capacity2.0 AhBattery Model24VBAT-LTECharger Model24VCHRG-ACCharger Input100–240V AC, 50–60 Hz, 50 WCharger Output25.2V D.C., 1400 mACharge Time Max1 hr 20 min / 80 minNo Load Speed8500 RPMCutting Diameter10 in. / 25.4 cmRotorSharperBlade™ mini trimmer blade and grass bladeTelescoping Pole36.6 in. to 48.4 in. / 93 cm to 123 cm2 Tools in 1Twist-N-Groom™ 180° rotating headProduct WeightApprox. 5.5–6.5 lbs depending on listed source and configurationWarranty2-year limited warranty for household useWhat's in the BoxIncluded Item24V-SB10-LTEGrass trimmer + edger✔Safety guard✔Auxiliary handle with knob and bolt✔SharperBlade™ mini trimmer blade✔Trimmer plate✔ pre-assembledGrass blades✔ 10 included / pre-assembledStorage compartment✔ pre-assembledWasher✔ pre-assembledScrew knob✔ pre-assemblediON+ 24V lithium-ion battery✔ 24VBAT-LTEiON+ 24V lithium-ion charger✔ 24VCHRG-ACManual with registration card✔Before You Trim🚫Keep hands, feet, clothing, and the battery away from the cutting area. Always remove the battery and wait for the blade to stop completely before assembling, adjusting, changing blades, cleaning, storing, or maintaining the trimmer + edger.⚠️Wear protective gear. Use eye protection, hearing protection, gloves, non-slip footwear, and snug-fitting clothing. Keep children, pets, and bystanders at least 50 ft / 15 m away from the work area.🌱Use only for intended lawn trimming and edging. This tool is designed for cutting lawns and trimming along flower bed borders. Do not use it in rain, wet locations, or around flammable materials.Battery + Charging🔋First charge: Before first use, charge the included battery for about 1 hr 20 min. Recharge when the battery level drops or performance decreases.Battery IndicatorMeaning3 LEDs litBattery charge level is high2 LEDs litBattery charge level is decreasing; charge soon1 LED litBattery is low; stop work and charge immediatelyRemove the batteryPress the push lock buttons on both sides of the battery and slide the battery out of the tool.Connect the chargerPlug the charger into a matching AC outlet, then connect the charger plug to the battery charge socket.Watch the LEDsThe indicator lights twinkle and illuminate one by one while charging.Unplug when fullWhen all 3 LEDs are illuminated, unplug the charger from the outlet first, then disconnect the battery from the charger.⚠️The included charger does not automatically turn off when the battery is fully charged. Do not leave the battery plugged into the charger after charging is complete.Assembly🚫Do not insert the battery until assembly is complete. Accidental starting can cause serious injury.1HandleInstall auxiliary handle.›2GuardSecure safety guard.›3StorageSnap storage compartment on.›4BladeInstall blade securely.Fit the auxiliary handleRemove the handle knob and bolt from the auxiliary handle, fit the handle into position, align the holes, then secure it with the bolt and handle knob.Install the safety guardRemove the 4 pre-assembled safety guard screws from the motor housing, place the guard over the motor housing, align the holes, then reinstall and tighten the screws.Install the storage compartmentSnap the storage compartment onto the pole with the correct side facing up so the stored blades do not fall out.Store extra blades safelyThe trimmer plate or SharperBlade™ mini trimmer blade can snap onto the storage compartment when not in use.Installing + Changing Blades🚫Always switch off the machine, remove the battery, and wait until the blade stops completely before changing blades. Wear protective gloves and handle blades carefully.Blade TypeBest UseSharperBlade™ mini trimmer bladeStringless trimming, edging, mowing in hard-to-reach areas, sweeping, and scalping. Use minimal pressure near hard surfaces.Grass bladeQuick trimming tasks and post-mowing touch-ups. Let only the blade contact the grass.To install or replace the SharperBlade™Loosen the screw knob counterclockwise, remove the knob and washer, position the SharperBlade™ with the washer in the middle, then tighten the screw knob clockwise to secure.To install a grass bladePlace the large notch of the grass blade over the knob on the trimmer plate, then pull the blade until the knob snaps into the small notch.Check before useConfirm the blade is properly seated and secured before inserting the battery.SharperBlade™ Care Tips💡Use minimal pressure. The SharperBlade™ is more rigid than string. Pressing hard against concrete, brick, or stone wears the blade faster.1Keep the blade just off hard surfacesWhen edging near concrete, brick, or stone, let the blade work close to the surface without pressing into it.2Never force the bladeHigh speed plus hard impact can buckle or tear the blade near the center hub. Let the blade do the work.Starting + AdjustingInsert the batterySlide the battery into the battery compartment until it clicks into place.Start the toolPress and hold the safety button, squeeze the On/Off switch, then release the safety button while continuing to hold the switch.Stop the toolRelease the On/Off switch. Wait for the blade to stop completely before setting the tool down or restarting.Adjust the telescoping shaftRemove the battery, rotate the telescopic shaft adjustment knob to unlock, pull the shaft to a comfortable height, then tighten the knob to lock.Operation Guide⚠️Cut from right to left. This helps throw debris away from you. Keep the tool below waist level and hold the rear handle with one hand and the auxiliary handle with the other.TaskHow to UseTrimmingUse the grass blade for quick trimming and post-mowing touch-ups. Hold the trimmer head above the ground and let only the blade contact the grass.ScalpingUse the SharperBlade™ to remove unwanted vegetation down to the ground. Hold the trimmer head about 3 in. / 8 cm above the ground and use the blade tip carefully. This increases blade wear.MowingUse the trimmer where a mower cannot reach. Keep the SharperBlade™ parallel to the ground and avoid pressing the head into the ground.SweepingKeep the SharperBlade™ parallel to and above the surface, then move side to side for quick cleanup.EdgingRemove the battery, slide the Twist-N-Groom™ collar downward, twist the handle 180° clockwise, release the collar, and confirm it snaps into place.Converting to Edger Mode🚫Remove the battery before converting the tool. Do not trim near electrical wires.Slide the Twist-N-Groom™ collar downwardHold the pole securely while sliding the locking collar down.Rotate the handleTwist the handle clockwise 180° to convert from trimmer mode to edger mode.Lock the positionRelease the collar and make sure it snaps into place.Adjust the auxiliary handleLoosen the handle knob, pivot the handle to a comfortable position, then tighten the knob.Use the guard as a guideUse the edge of the guard as a guide when cutting near fences, sidewalks, flower beds, and walls.Care + Maintenance🚫Always turn off the machine and remove the battery before maintenance. Wear protective gloves and do not carry out maintenance while the motor is running or hot.1Clean after each useRemove grass, weeds, soil, and debris from the trimmer, blade area, and guard after each cutting operation.2Keep air vents clearDuring operation, keep ventilation openings clean and free from grass buildup.3Use gentle cleaning onlyUse a cloth with hot water and a soft brush. Do not spray or wet the tool with water. Do not use detergents or solvents.4Inspect the bladeIf the SharperBlade™ no longer cuts well or breaks, replace it with the correct authorized replacement blade.Storage1Clean before storageRemove grass, dirt, and debris from the tool before storing it.2Store safely indoorsStore in a stable, dry, secure place out of reach of children. Avoid very hot or very cold storage areas.3Do not rest it on the guardStore by hanging the tool by the upper handgrip so the guard does not touch anything. Resting on the guard may alter its shape.4Off-season battery careRemove the battery from the charger when not in use. Recharge the battery every 6 months to about 50% capacity / 2 lights during off-season storage.Troubleshooting GuideUse these quick checks for common 24V-SB10-LTE issues. Always remove the battery before performing adjustments, maintenance, cleaning, or repairs.🔴 Trimmer + Edger Does Not StartPossible CausesBattery is not inserted fullyBattery charge is too lowBattery may be overheatedSafety button and On/Off switch sequence was not completedSolutionsRemove and reinstall the battery until it clicksCheck the battery indicator lights and charge if neededLet the battery cool to room temperature before usePress and hold the safety button, then squeeze the On/Off switchIf still not working, check warranty eligibility and route to support⚠️ Trimmer + Edger VibratesPossible CausesGrass, weeds, or debris caught around the blade slotsSharperBlade™ is worn, damaged, or not seated correctlyBlade assembly needs cleaning or replacementSolutionsRemove the battery and wait for the blade to stopRemove the SharperBlade™ and clean the slots carefullyRemove grass, weeds, and debris from the blade areaReassemble securelyIf vibration continues, replace the SharperBlade™ with a new one🌱 Cutting Performance Is WeakPossible CausesBattery charge is lowBlade is worn or damagedGrass is too thick or tool is being forcedVentilation openings are cloggedSolutionsCharge the battery fullyInspect and replace worn bladesUse lighter passes and let the blade do the workClean air vents and blade area after removing the battery✂️ Blade Wears Too QuicklyPossible CausesToo much pressure against concrete, brick, or stoneBlade is striking hard surfacesSharperBlade™ is being forced through the work areaSolutionsUse minimal pressure while edgingKeep the blade just off hard surfacesLet the blade do the work without extra force🔋 Battery Does Not Seem to ChargePossible CausesCharger is not fully plugged inBattery is not connected to charger socketBattery or charger is too hot or too coldCharger was left connected too long or battery has been deeply dischargedSolutionsConfirm the charger is plugged into a working outletConfirm the charger plug is connected to the battery charge socketCharge indoors at room temperatureUnplug when all 3 LEDs are illuminatedIf still not charging, route to supportOptional AccessoriesAccessoryModeliON+ 24V 2.0 Ah lithium-ion battery24VBAT-LTEiON+ 24V 2.5 Ah lithium-ion battery24VBAT-LTiON+ 24V 4.0 Ah lithium-ion battery24VBATiON+ 24V 5.0 Ah lithium-ion battery24VBAT-XRiON+ 24V lithium-ion battery quick charger24VCHRG-QCiON+ 24V lithium-ion battery dual port charger24VCHRG-DPCSharperBlade™ mini replacement blades, 3 packSB10-BLD-3PKGrass blade replacement blades, 20 packSB10-GBLD-20PKUniversal wall bracketSJWBVideo GuideFrequently Asked QuestionsWhat is the 24V-SB10-LTE best used for?It is best used for trimming grass, managing weeds, edging along flowerbeds, and cleaning up areas that a lawn mower cannot reach.Does this use string line?No. The 24V-SB10-LTE is a stringless trimmer that uses a SharperBlade™ mini trimmer blade and grass blades instead of string line.What is the cutting diameter?The cutting diameter is 10 inches.How long does the battery take to charge?The included 24VBAT-LTE battery takes about 1 hr 20 min / 80 min to fully charge.Does the charger turn off automatically?No. The charger does not automatically turn off when the battery is fully charged. Unplug the charger when all 3 battery LEDs are illuminated.How do I convert it from trimmer to edger?Remove the battery, slide the Twist-N-Groom™ locking collar downward, twist the handle 180° clockwise, then release the collar and confirm it snaps into place.Can I use metal blades, string, wire, or rope with this tool?No. Use only authorized Sun Joe® SharperBlade™ mini replacement blades or grass blade replacements. Do not use steel blades, wire, string, rope, or other materials.How do I make the SharperBlade™ last longer?Use minimal pressure when edging near concrete, brick, or stone. Keep the blade just off hard surfaces and let the blade do the work without forcing it.How should I store the trimmer?Clean it thoroughly, remove the battery, and store it indoors in a dry, secure place. Hang it by the upper handgrip so the safety guard does not rest against a surface.What warranty does it have?The 24V-SB10-LTE is backed by a 2-year limited warranty for ordinary household use when purchased from Shop Joe or an authorized seller with proof of purchase. Related articles Sun Joe® X20-HHB-5A Cordless Handheld Turbo Blower