I have had 2 of the cheap Chinese copies overheat the battery when on charge, the battery got hot, expanded and forced open the case (I think I posted photos on this site ?)
The first I used to start a car with a very very dead battery and the second just went flat while sitting under the seat of my bike for 5 months, in both cases I think the charger did not shutdown when the batteries were full.
When on charge don't turn your back they are dangerous little things.
Some of the 19 rides in my shed
2014 V2, Snoopy
2009 Wee, Pumbaa the pig
WR450F, The Blue Postie Bike
YZ250N smoker with rego, Stinky.
Yamaha MT09 (FZ09), The Scud missile.
Club Lead not Club Med.
He with the most toys wins.
Out of my depth in a puddle.
Live life on the edge you will see more that way.
Ridding a motorcycle keeps things in balance.
At the end of each trail and at the end of each day history is made.