Makita’s 4.0Ah battery has arrived
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 advantage
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.
“Tools with a black connector that does not have a STAR will not run with the new battery”.
Could you just very briefly explain why not? I red some other reviews and they say new battery fits after just minor alteration – removing small tab preventing battery to fit.
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