Battery BS BB16AL-A2 with acid

Conventional batteries are flooded lead batteries.
These batteries must be filled before first use.
High-performance conventional batteries include a sulfation-retardant technology that reduces sulfation of the battery's kill plate. This results in a longer battery life, especially in standby or storage mode.
These batteries are perfectly suitable for motorcycles, scooters, all-terrain vehicles, UTVs (utility vehicles), boats, snowmobiles, and lawnmowers.

Supplied WITHOUT acid included

For starting up and charging the battery with acid:
You just need to remove the plugs from the battery tubes (top part), fill it with acid, wait two hours (without putting the plugs back), then clean any acid that has come out with paper or a cloth and put the plugs back on.
And depending on the battery, it is already ready to use.
You need to connect the positive red and negative black and start the motorcycle, the same start will charge the battery. Some people prefer to charge it before use to ensure the battery is 100% charged.