20 Most Recent Hitachi Koki Usa WH18DL Lithium Ion Cordless Impact Driver 18 Volt Questions & Answers


These batteries have big problems that Hitachi doesn't address very well. Unlike NiCad batteries, Lith-Ion ones must be periodically used and recharged to retain their battery functions, i.e. if they have been sitting on the shelf at a store for an extended period of time, chances are they will be dead when bought and will not accept a charge. If they go dead i.e. no little red light on the charger when you plug the battery unit in...it's basically junk.

If you can return them or exercise the warranty do so. If / when you get new ones DO NOT completely discharge them like you would NiCads. Lith-Ion batteries do not have the "battery memory" issues that NiCads have which means you don't lose running time if you don't fully discharge the battery unit prior to recharge. Completely discharging before recharge will ultimately kill them. Use the 1815X till almost dead and then charge it. It is also recommended Lith-Ion batteries not be stored fully charged i.e. charge the 1815X fully, drive a couple bolts or screws, remove the battery unit and then put it away. Do not leave battery unit plugged into the tool when you put the tool away. This will discharge and kill the battery unit.

There are non-Hitachi substitute batteries now on the market. I'm guessing the same precautions apply but I don't own one of the replacements so I don't truly know.

The actual batteries in the Hitachi BSL 1815X are Sanyo UR18650SAX lithium ion batteries. Lithium Ion cells aren't all that easy to get commercially because of handling & safety requirements. Not certain if you can take apart the 1815X and swap out the bad Sanyo cells.

Hitachi Koki Usa... | Answered on Jul 17, 2020


replace the battery if the charge test good on a volt meter Radio Shack can test if for you possibly for free

Hitachi Koki Usa... | Answered on Apr 14, 2011


The OEM chuck for that is about 45 dollars. There are no substitutes offered.

Hitachi Drills | Answered on May 09, 2020


If its not an bad soldering or an passive component , beware almost all brands wenn ordering an electric part for a charger its almost always more expensive then a complete (new charger ) the latest years there are more and more remplacement options to the customer , if there are defect components that are not made for ordering on marketing technical reasons and safety and more reasons. mosnfets (passive component almost sometimes fuse resistors but smd components to repair is not meaningfull . when termical defects are hidden.

Hitachi Drills | Answered on Jan 18, 2019


Generally the answer is yes for most models. Check the manual.

Hitachi Drills | Answered on Apr 13, 2018


Leave the part that is stuck in a jar with petrol overnight and then put it in a vice and try then to open then with spanner at the end of the chuck hope this helps

Hitachi Drills | Answered on Feb 18, 2018


How to Remove Drill Chuck
If there is screw in inside center of chuck remove it, it is probably left hand threads so pretend you are tightening it and it will come free. open chuck fully and insert chuck key into holes and hit it with a hammer to remove it.

Hitachi Drills | Answered on Oct 12, 2017


Replacement HITACHI DV 18DGL battery pack 100% compatible with the original DV 18DGL battery, high quality, wholesale price.
http://www.drillbattery.com.au/buybattery.php/hitachi_DV+18DGL_power+tool+battery.html

Hitachi Drills | Answered on Jul 21, 2017


I'm hoping you mean a chuck "key" .... there are only 4 different sizes and can be bought in tool stores as universal chuck keys tool 4 in 1 tool...

Hitachi Drills | Answered on May 15, 2017


You need to replace the drill chuck.

Hitachi Drills | Answered on May 12, 2017

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