Makita DC18RA Rapid Battery Charger For LiIon NiMh  NiCd Batteries Logo

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Anonymous Posted on Oct 23, 2012

R91 value in dc18ra makita charger

R91 is burnt out do you know what the value is

2 Related Answers

Anonymous

  • 2 Answers
  • Posted on Apr 07, 2009

SOURCE: Need to know what the lights mean on a makita dc24sa charger

• When the battery cartridge is inserted, the charging light color will change from green to red and charging will begin.
The charging light will remain lit steadily during charging.
• One red charging light indicates charged condition in 0 – 80% and two red ones indicates 80 – 100%.
• With finish of charge, the charging lights will change from two red ones to two green ones.
• The charging time is as follows:
Battery B9017A, BH1220, BH1420, BH9020A: approx. 20 minutes.
Battery B2417, BH1233, BH1433, BH2420, BH9033A: approx. 30 minutes.
Battery B2430, BH2433: approx. 60 minutes.

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mihul1984

Tanase Mihai

  • 1 Answer
  • Posted on Jul 21, 2020

SOURCE: r91 value in dc18RC T makita charger r91 is burnt out do you know what the value is

R91 is 2R4 ohm
7_21_2020_2_14_25_pm.jpg

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1answer

R91 value in dc18rRC T Makita charger r91 is burnt out do you know what the value is. See the board in the left corner

Most likely replacing that Resistor is not the only problem, do you know how to replace surface mount components?
I can look on a know good unit and see if there is a value or measure it. Surface mount components are not sold like regular electronic parts were.
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DC18RA battery charger i.c number

call Makita...they've always been real good about warranty'ing their products... (they'll probably just send you a new one on your word?!) it's definitely doesn't hurt to ask...?!
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Where can I get a schematic diagram of Makita DC18RA Charger?

my battery charger ic broken for a.c power flechuvation so iam not seeing that i.c number so i will ask you model DC18RA
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Battery flashing red and green indicating battery is broken

i have had the same problem with red and green flashing on my makita charger --- cleaned the contacts blew out the fan problem solved
2helpful
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I have 110 volt durapro 18volt dc battery charger, component R14 has burnt out beyond recognition and I was hoping someone could tell me exactly what it is so I can replace it. Thanks

Hello,
The component is a resistor. The problem is going to be determining the resistors value since it was burnt and you can not see the color code. You might try contacting the manufacturer and asking them the value of that specific resistor by including the number like you did in your post R14. If you can find a wiring diagram for the product, it should tell you the value of the resistor also.

I hope this helps you getting started in solving the issue.

If you would not mind, please rate my help. I would greatly appreciate it. Thank You
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