Can I replace my defunct Makita charger dc1411 with a dc1413/4?

Here is the charger. it is priced pretty good. I have seen it at other places for over $100.00 https://www.factoryauthorizedoutlet.com/makita-7-2v-18v-pod-style-and-stick-style-3-hr-charger-model-dc1804

The DC18RC are most likely to charged the BL1830 battery, which is the most popular of 18V Makita power tools. It is a Li-ion battery.

And the DC18RC battery charger has two volt 110 Volt and 240 Volt.

The 240 Volt DC18RC charger can replace model DC18RA & DC18SD because of its improved performance and full compatibility with Makita's NEW 'Star' labelled batteries that communicate between the tool, battery & charger. And, it is a fast charger.

It can charge a Makita BL1830 Battery in approx 22 minutes.

But, I do not recommend to convert a makita charger model DC18RC at 110 volt to 240 volts.

The reason is as below:

1. This will void product warranty ! If you follow this mod, you do it on your own risk !

2. There are several comments that described
same model # but with different design and components.
Please beware that this mod might not work on your charger
or worst, will damage it.
Only perform this mod if you know your way around with electronics !

You can get a 18V replacement Makita battery for your drill. The replacement one is cheaper. Replacement MAKITA BL1830 battery pack 100% compatible with the original BL1830 battery, high quality, wholesale price.

http://www.drillbattery.com.au/buybattery.php/makita_BL1830_power+tool+battery.html

The Makita Factory may repair them, and then resell them in reconditioned kits, but they will only sell you a new one, or replace it under warranty.

If the charge count on the batteries is under 300, Makita will replace them. Makita has a known defect in this battery that causes the battery to shut down before it is dead. So as of now they are exchanging ones with low use.

If they are truly defective and makita won't replace, you have to open them, find the dead cell or blown fuse, and replace. Search youtube makita battery for a video on repairing this battery. But once the red and green lights on the charger flash, the the battery can't be charged on a Makita charger -- it's been locked. So use a third party charger.

The battery is 14.4 volts so the charger should be 14.4 volts.

Maybe your battery is died, you can replace it on

http://www.drillbattery.com.au/buybattery.php/makita_1220_power+tool+battery.html