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Makita BL1840 18V 4.0Ah Li-Ion Battery (19371)

The Makita BL1840 18V 4.0Ah Li-ion battery is an efficient and long lasting power pack that is the same weight as its 3Ah equivalent. It's durable, comes in a shock-absorbing pack and won't overheat during long jobs. The battery easily fits all compatible Makita power tools thanks to a simple, secure slide-in mechanism and it can be charged to full power in just 36 minutes. It won’t self-discharge when kept in storage for a long time either, so it's ready to go as soon as you are.

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Rated 4.6 out of 5 by 29 reviewers.
  • 2016-05-02 T06:47:41.907-05:00
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Rated 5 out of 5 by Makita never let you down Makita what can you say! All my battery tools are makita. The 4 .0 Ah battery just gives you more juice to carryout those demanding jobs. Especially good with my makita SDS drill i have had faultless use all day with one fully charged battery. Makita will always get my vote. 1 Apr 2016
Rated 5 out of 5 by Makita 4ah Makita used to get abit of aggro about their batteries but these are about the best ones on the market. I have five of these and one 5ah. My oppo has dewalt and also 4ah and depending on what we are doing he charges 2 to my 1. 22 Feb 2016
Rated 1 out of 5 by Doesn't fit my makita I have just bought this product. It only fits one of my tools. My drills and grinder use the 3ah batteries and have the star on them. I bought into makita so I could use the same batteries,now I am stuck with old tech. Not at all happy. 10 Dec 2015
Rated 5 out of 5 by Battery Needed spare one and this was a great price screw fix is in all towns now so it's very easy to buy tools and parts 8 Dec 2015
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5 Questions  2 Answers

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Why do you show irrelevant items in the related products section, (like Caulk, screwdriver bits, etc) but no chargers, or suitable tools?
19 Feb 2016
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Bristol
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1 Apr 2015
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Eastbourne
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1 Apr 2015
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Answer: 
Yes, as long as it's the correct fitting for your drill it will be fine. Think of the ah rating like the size of the fuel tank - as long as it's the same power (ie 18V) as your drill it will be fine, just that a 4ah battery will allow it to run for longer than a 3ah before needing to be recharged.
13 Oct 2015
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Yeovil
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1 Apr 2015
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26 Feb 2015
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Norfolk
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Answer: 
Thank you for your question, this battery will fit the Makita DHP453RM cordless combi drill (71790)
27 Feb 2015
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Yeovil
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Specification
Battery Power 4.0 Ah
Battery Type Li-Ion
Brand Makita
Carry Case/Bag Included No
Charge Time 36 min
Colour Black
Manufacturer Guarantee 1 years
Model No BL1840
Pack Size 1
Pieces in Pack/Case 1
Power Voltage Supply 18 V
Product Height 60 mm
Product Length 120 mm
Product Width 70 mm
Total Product Weight 0.626 kg

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Instruction Manual