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Makita BL1840 18V 4.0Ah Li-Ion Battery Review

Review of Makita BL1840 18V 4.0Ah Battery

Makita’s 4.0Ah battery has arrivedMakita 4.0 Ah Battery

Same weight and power, lasts longer

The BL1840 18 volt 4.0 amp hour lithium ion battery weighs the same as their 18V 3.0Ah battery and delivers the same power, but lasts longer, taking over 2,000 charges.

Fast charging

Makita says the new battery recharges in 36 minutes with existing DC18RC and DC18RA Makita chargers – no need to buy a new charger.

Compatibility advantageMakita 18V 4.0 Ah Compatibility

The new battery is compatible with over 100 tools in the existing Makita tool line up. If you already have Makita tools, check the bottom of the tool where you slide on the battery. If the connector base is yellow (with or without a STAR) or black with a STAR the tool will run on the new 4.0 Ah battery. Tools with a black connector that does not have a STAR will not run with the new battery

Memory chip built in to battery

The new battery has a built-in memory chip that communicates with the charger’s CPU. This intelligent charging technology allows the charger to recall the battery’s charging history, analyse it’s condition and usage, then charge the battery accordingly.

Electronic chip embedded in Makita tools

All Makita power tools with a connector bearing a STAR (whether the connector is yellow or black) have a chip fitted in them that monitors the performance of the tool – how hard it’s working and how it’s responding – and relays this to the battery to make sure that enough power reaches the motor. This protects the motor from drawing more power than the battery can deliver. Battery cells are protected from damage that makes them inefficient at holding a charge which reduces runtime – batteries spend less time on the charger and tools spend more time in your hand.

Battery protection system

The BL1840 incorporates the Makita battery protection system that delivers over-discharge, temperature and current protection that improves battery performance, life cycle and overall battery life. But this applies only to with tools marked with a STAR.

Intelligent system

Putting all these intelligent features together makes the new Makita 18V 4.0Ah Li-Ion battery more efficient to deliver longer tool running time and longer battery life.

Summarizing, the new battery features Lithium Ion technology, long runtime/battery life, takes over 2,000 charges, plenty of power, same weight as 3.0Ah battery, re-charges in just 36 minutes with Makita chargers and fits all Makita tools with ‘STAR’ and/or yellow connector.  For more information on the 4.0 Ah BL1840 visit our online store.

 

One thought on “Makita BL1840 18V 4.0Ah Li-Ion Battery Review

  1. List Makita 18 V product that are NOT COMPATIBLE with this battery (37 products):-

    BDF452HW Drill / Driver
    BHP451 Drill / Driver
    BDF451 Drill / Driver
    BGA452 Angle Grinder
    BTP140 Hybrid Impact Hammer Driver Drill
    BTD140 Impact Driver
    BSS610 Circular Saw
    BVR850 Concrete Vibrator
    BHR240 Rotary Hammer
    BJR181 Reciprocating Saw
    BPB180 Portable Band Saw
    BVR450 Concrete Vibrator
    BTD142 18V Compact Lithium-Ion Cordless Impact Driver
    BTW251 18V LXT Lithium-Ion Cordless 1/2″ Impact Wrench
    BJV180 18V LXT Lithium-Ion Cordless Jig Saw
    BSS501 18V LXT Lithium-Ion Cordless 5-3/8″ Circular Trim Saw
    BCS550 18V LXT Lithium-Ion Cordless 5-3/8″ Metal Cutting Saw
    BHP452 18V LXT Lithium-Ion Cordless 1/2″ Hammer Drill-Driver
    BTD141 18V LXT Lithium-Ion Cordless Impact Driver
    BTL061 18V LXT Lithium-Ion Cordless Angle Impact Driver
    BTW450 18V LXT Lithium-Ion 1/2″ Cordless Impact Wrench
    BSS611 18V LXT Lithium-Ion 6-1/2″ Circular Saw
    BJR182 18V LXT Lithium-Ion Reciprocating Saw
    BTW253 18V LXT Lithium-Ion Cordless 3/8″ Impact Wrench
    BJS130 18V LXT Lithium-Ion Cordless 18 Gauge Straight Shear
    BDA350 18V LXT Lithium-Ion Cordless 3/8″ Angle Drill
    BFS450 18V LXT Lithium-Ion Cordless Drywall Screwdriver
    BHR202 18V LXT Lithium-Ion Cordless 7/8″ SDS-Plus Rotary Hammer
    BFR750 18V LXT Lithium-Ion Cordless Autofeed Screwdriver
    BHP454 18V LXT Lithium-Ion Cordless 1/2″ Hammer Driver-Drill
    BDF453 18V 1/2″ Cordless Driver Drill
    BTL063 18V LXT Lithium-Ion Cordless 3/8″ Angle Impact Wrench
    BCS550Z 18V LXT Lithium-Ion Cordless 5-3/8″ Metal Cutting Saw
    BGA452Z 18V LXT Lithium-Ion Cordless 4-1/2″ Cut-Off/Angle Grinder
    BHR202Z 18V LXT Lithium-Ion Cordless 7/8″ Rotary Hammer
    BHR240Z 18V LXT Lithium-Ion Cordless 7/8″ SDS-PLUS Rotary Hammer
    BDA350Z 18V LXT Lithium-Ion Cordless 3/8″ Angle Drill
    BDF451Z Cordless 1/2″ Driver-Drill
    BDF452 Cordless 1/2″ Driver-Drill
    BFR750Z Cordless Autofeed Screwdriver
    BFS450Z Cordless Drywall Screwdriver
    BJR181Z Cordless Recipro Saw
    BTW450Z 18V LXT Lithium-Ion Cordless 1/2″ High Torque Impact Wrench
    BVR450Z 18V LXT Lithium-Ion Cordless 4 Ft. Concrete Vibrator
    BVR850Z 18V LXT Lithium-Ion Cordless 8 Ft. Concrete Vibrator
    BJV180Z 18V LXT Lithium-Ion Cordless Jig Saw
    BPB180Z 18V LXT Lithium-Ion Cordless Portable Band Saw
    BSS610Z 18V LXT Lithium-Ion Cordless 6-1/2″ Circular Saw
    BSS611Z 18V LXT Lithium-Ion Cordless 6-1/2″ Circular Saw
    BTD141Z 18V LXT Lithium-Ion Cordless Impact Driver
    BHR241 Lithium-Ion Cordless Rotary Hammer
    BHR241Z Lithium-Ion Cordless Rotary Hammer
    LXDG01 18V LXT Lithium-Ion Cordless 1/4″ Die Grinder
    LXDG01Z 18V LXT Lithium-Ion Cordless 1/4″ Die Grinder
    LXNJ01Z 18V LXT Lithium-Ion Cordless 16 Gauge Nibbler Tool Only
    XDG01Z 8V LXT Lithium-Ion Cordless 1/4″ Die Grinder
    XWT01Z 18V LXT Lithium-Ion High-Torque Impact Wrench

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