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Faulty battery. Any troubleshooting for a battery like this that the charger flashes red/green now. It's about 2 years old. : r/ryobi
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ADVTRONICS 40 Volt Lithium-Ion OP401 Charger Compatible with Ryobi 40V Battery OP4026 OP40201 OP4040 OP40401 OP4050 OP4050A OP40501 OP40601 - Amazon.com
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Have a question about RYOBI 40V Lithium-Ion 4.0 Ah Battery and Rapid Charger? - Pg 4 - The Home Depot
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Amazon.com: energup 40V 6500mAh Replacement Ryobi 40V Lithium Battery and Charger Kit for Ryobi 40-Volt Battery OP4040 OP4026 OP4030 OP4050 OP4060A Ryobi 40V Battery with a OP401 Ryobi 40V Charger : Tools
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Amazon.com: 40V OP401 Dual Charger for Ryobi 40V Battery Charger OP4040 OP4050A OP4026 OP4026A OP4030 OP4050 OP401 Ryobi 40V Charger : Tools & Home Improvement
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Ryobi 40 Volt Lithium Battery Not Charging- Easy Fix to Charge and Save Money on a New Battery - YouTube
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