A vehicle alternator or dynamo is not designed to recharge a battery and is incapable of doing so except over extremely long periods of use and then only when the battery is young and fit. As the battery ages it becomes less capable of accepting a charge while an unmonitored battery will gradually self-discharge and if left in a low state of charge will quickly sulphate and have a permanently reduced capacity until it becomes useless.
Regular monitoring of the terminal voltage and regular top-up recharging will extend battery life and be more convenient than discovering the battery is dead when the grass needs mowing, groceries need collecting, the fields need ploughing...
Investing in a battery maintainer, either a mains powered type or a solar powered type will keep the battery full charged and healthy for much longer.
Battery's typically don't last over four seasons (new) even less if its left outside in the freezing cold if your battery is older than that , id say your due a new one ,a simple hack is to have your tractors charging system ck'd by a service station(some even advertise doing it for free ) , tractors use a similar system as cars do to maintain there batterys (but smaller) so the same equipment that helps to diagnose cars works the same on tractors
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A vehicle alternator or dynamo is not designed to recharge a battery and is incapable of doing so except over extremely long periods of use and then only when the battery is young and fit. As the battery ages it becomes less capable of accepting a charge while an unmonitored battery will gradually self-discharge and if left in a low state of charge will quickly sulphate and have a permanently reduced capacity until it becomes useless.
Regular monitoring of the terminal voltage and regular top-up recharging will extend battery life and be more convenient than discovering the battery is dead when the grass needs mowing, groceries need collecting, the fields need ploughing...
Investing in a battery maintainer, either a mains powered type or a solar powered type will keep the battery full charged and healthy for much longer.
Battery's typically don't last over four seasons (new) even less if its left outside in the freezing cold if your battery is older than that , id say your due a new one ,a simple hack is to have your tractors charging system ck'd by a service station(some even advertise doing it for free ) , tractors use a similar system as cars do to maintain there batterys (but smaller) so the same equipment that helps to diagnose cars works the same on tractors