Trying to repair my Ryobi BCL14181H battery charger

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Ryobi P202

The Ryobi P202 part of the Ryobi One+ series. This model is an 18-volt cordless 1/2 inch drill, and is bright green and grey in color. It has a built in level gauge and a two gear ratio switch on the top of the drill, along with a direction switch, magnetic tray, and drill bit clip.

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Conrad Gauthier @cajun520

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投稿日: 2022年6月9日

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Trying to repair my Ryobi BCL14181H battery charger

I have a BCL14181H battery charger (Ryobi) that does not charge. No blown parts. I am having trouble identifying components. Does anyone know the component number for U5? It is a 20 pin SMD chip. Also there are some components that look like an SMD resistor but appear to be jumpers. they are labeled RJ1, etc. Component U4 has what looks like T8L05 stamped on it. Anyone have an idea what it is?

I tried it with a battery that is at 16.5 volts and it doesn't work. I can put the battery in a known good charger and it charges up.

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I am trying to identify two components on the board. the first one is labeled U4 and actually looks like a transister in a TO type package. the other one is labeled U5 and is a 20 pin package. Does anyone have any idea what the identifying numbers are for these?

Conrad Gauthier さんによる2022年6月12日

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I am trying to identify two components on the board. the first one is labeled U4 and actually looks like a transister in a TO type package. the other one is labeled U5 and is a 20 pin package. Does anyone have any idea what the identifying numbers are for these? — Conrad Gauthier