Fill with distilled water to just above the plates. If it has a clear/opaque case, fill to between the lines below the top cover. Note, many of the smaller batteries are gel filled/sealed for life (after initial filling) and should never be topped up.
use pure rainwater, freshly caught in a glass container
You have an UPS with a motorcycle battery in it, correct? You use the distilled water to top off the electrolyte in the cells.
In a wet acid battery the water should just cover the plates. However, most motorcycle batteries are sealed-for-life and/or gel batteries. They need no maintenance, they should not be opened. Check which type you have fitted.
No, not if the motorcycle is wired for a 6 volt system. This must be a very old motorcycle.
Your battery is dead if it will not accept a charge. Begin by removing the battery cover. Next, remove the negative and positive cables. Lift the battery out of the motorcycle. Replace it with a new battery and attach the negative and positive cables. Turn on the motorcycle to check that the lights are working and start the motorcycle to make sure that it runs properly. Replace the battery cover.
underneath the seat
Any 12 V battery charger will charge a motorcycle battery. But it is best to get one with low amperage such as a 4 to 6 amp battery charger. You can use a trickle charger to keep the battery charged on my motorcycle during storage.
The charging system may be over charging the battery. Over charging the battery can speed up the evaporation process. Have the electrical system tested.
Standard 6 volt motorcycle battery aabout $50 to $100
You must get a couple of so-called jumper cables. The cables have strong clamps on them and are designed to be clamped to the battery terminals. Attach the black cable to the negative terminals of the motorcycle and car battery first. Then attach the red or positive cable to the positive terminals of the motorcycle and the car battery. In case your motorcycle battery is empty, you can now start the bike from the car battery. Disconnect the cables in reverse order, beginning with the red cable. The motorcycle battery will not be charged much by the car battery but the bike can be jump started by using this method.
Yes. Cold weather can deplete the charge in any motorcycle, marine, or automotive battery.
Yes you can.