Hummingbird 385ci charger noise

[Tee Tee]

I plan on heading to the hard water in the morning so I pulled my Hummingbird out to charge it. Normally I charge the battery in the spring for storage but last spring I didn't. I store my batteries disconnected as well.

This morning when I attached the charger, the piece with the lights started to hum. The light was not red showing short. I had the leads on the correct battery tabs. Normally when charging the light indicates orange then green for charged.

This never made that sound or any other before. After a few minutes, less than 5 the noise stopped.

Was it just because the battery was so low or what?

[3300]

mine died the same way
so heres what i did

got a smart charger, battery tender jr is a four stage charger, works on all kinds of batteries
best charge you'll find for the money

check one out. mine came from amazon a few years ago

they look too simple, but are nice chargers

[Tee Tee]

Cool. Thanks.