Answer Most of the time the battery is loosing charge on a mower it is bc the battery is going bad. The cells inside are wearing out and not holding a charge. Replace the battery and usually the problem stops. If it is a acid fillable battery then make sure the battery has the proper amount od distilled water and acid in it. Also if it is a serviceable battery then I would replace it with a maintenance free battery anyway. A lot less to mess with. Good luck.
As long as the battery in the lawnmower is a 12 Volt battery you will be fine.
The ideal voltage requirement for a lawnmower battery is typically 12 volts.
Yes, a lawnmower can run on a bad battery if it has a pull-start or manual start option, as these methods do not rely on the battery. However, if the lawnmower is electric or requires the battery for ignition, a bad battery will prevent it from starting. In such cases, replacing or recharging the battery is necessary for proper operation.
Yes.
Yes, if it will fit.
Most lawnmower batteries will be badly abused by this and it will be quite expensive in gasoline. A lawnmower battery will normally take 8 hrs (or so) to charge. Forcing them to charge faster, like off your car, will harm it.
It is unlikely that the NB4L battery will work for your lawnmower but it really depends on your mower. Most of these batteries are used for small electronics like cell phones.
Then either something is on draining the battery or the battery has a dead cell draining all the rest and must be replaced.
no. not good idea
Yes, it charges from the magneto.
A short will not drain the battery it will blow a fuse. It may be the battery has a dead cell, or some light is on draining the battery. It can also be a stuck relay.
Something is on draining your battery overnight. Any light or any relay. It can also be your battery has a dead cell draining it overnight.