119 to 12 volts fully charged is 1272 volts. A trickle charger is a must if you plan on parking your car for an extended period of time.

11 Best Car Battery Trickle Charger Review 2019 Best Car
Trickle charger not charging battery. Step 1 open the batterys vent caps to check the electrolyte level in each cell. A trickle charger keeps the charge topped up by delivering a small constant current during storage or periods of disuse. Now that youve located the battery and its terminals. Add distilled water to the bring the level up to the bottom of the fill hole if necessary. Yes u an leave the charging on if the battery is not dry battery and the charger isnt available all the time but i recommend u buy a 12 v over charge protection kit or u can make it urself its really easy and cheap to buy or build buy a trickle charger if u do so. Locate your battery terminal and ground location.
A battery can be drawn lower than this particularly if allowed to remain. At the same time overcharging it will kill your battery. Be mindful and check if the cables are connected. The one amp trickle charger is used for charging your motorcycle battery your golf cart and other small things of the like. The trickle charger pumps a charge into the battery whether it needs it or not. There are situations where a smart battery charger wont recognize a battery because the some chargers have a relatively high voltage threshhold.
A cars alternator does the job of maintaining a healthy battery but it wont recharge a dead battery. If there is any movement in the ammeter needle from zero then it means that the charger is functioning. If the charger does not begin to charge even after a few minutes then it means that your battery is dead beyond recovery. Thats where a trickle charger comes into play. Basically trickle chargers help the battery maintain power and stop self discharge. To ensure that your trickle charger is working you can also try using it n a different battery.
A motorcycle battery will lose one percent of its charge everyday just doing absolutely nothing. Even when not in use a battery still gradually loses power. There are points that we need to remember if we want to use a trickle charger in charging car batteries. A lot of battery chargers are capable of putting out a variety of different amperages to charge a battery slowly or quickly as the need arises and some are also designed to be left connected long term without overcharging. Start by popping your hood and locating your battery terminals. The term trickle charger technically just refers to a battery charger that charges at a very low amperage but the situation is a little more complicated than that.
So leaving your battery uncharged will likely kill your battery. First make sure that the battery is ready for charging. To keep a battery charged during long periods of non use you need a battery conditioner not a trickle charger.