phillip morse

Hello, 2019 bought Ryobi 480e, 1.5 years use, 1/4 acre, stored in basement all winter plugged in except when power would go out, poor infrastructure, When tried to start last week, it Would not start, no reaction when turning the key, charger light and mower charge port not blinking, one battery would only charge up to about 6V using standard 12V charger after unhooking all batteries. Other three charge over 11V Installed new battery same specs except 80 amp instead of original 75 amp, strict compliance with utube instructor, well versed and competent. After install, hooked up all connections plugged into factory charger, light on charger and mower blinking, turn key nothing.....no head lights no buzzer when off seat, nothing. Key no noise click when turning, no resistance, just smooth going from aux to off to on. Last year I had bent the key a little getting off the mower, but didn't seem to matter at the time, continued use for the summer. Please help if you can. Thanks, Phillip