Noob question about Floating my batteries

[wiseacre]

No matter what I do my batteries won't float.
I've tried filling the bathtub first but they just sink.
When I put them in first and turn on the water they just sit there until submerged.
Do I need to increase the voltage setting to overcome the float resistance?
Can I just mist them (being careful not to get the terminals wet) or do they really need to soak?

 

[wattmatters]

You've made a rookie error. Fill the tub with mercury. Your batteries will float just fine then. But be sure to carefully isolate the battery terminals as the bath will be conductive path.

 

[wiseacre]

Holy Mother of Muppets, Batman
Have you seen the price of Mercury?
I'll either have to forgo floating the battery or find a DIY solution

Could I freeze a block of ice and "float" the battery on it?

 

[Maxter]

That would be a cheaper DIY solution but with a caveat... you must maintain a warmer temperature for your batteries so your BMS doesn't shut down. Perhaps some insulation below your batteries and some battery heating pads would help.

 

[Charleswgibbs]

You need to increase the voltage. This will produce hydrogen which will cause the battery to float as desired. Make sure to use a safety tether