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EarlyBay Forums
General Earlybay Chat
help with my leisure battery
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<blockquote data-quote="BJ1" data-source="post: 163078" data-attributes="member: 355"><p>Easy way to check the LB is to wire up a headlight bulb and time how long it stays on. If the bulb is say 50 watts it draws just over 4 amps (50/12) so a good 50 amp/hr LB should run the bulb for at least 80% of the fully charged capacity so say 40/4 = 10 hours. In practice the bulb will start to dim after about 70% of the capacity is exhausted. If your LB runs the bulb for 50% capacity it is OK to keep for a while - anything less than this and it needs replacing. </p><p></p><p>And Ian is right - LBs don't mind high charging currents (like 10 amps) for a while but when they are full they can be damaged by overcharging, so not a good idea to use 'normal' chargers. I use chargers specifically designed for LBs to keep them topped up over winter.</p></blockquote><p></p>
[QUOTE="BJ1, post: 163078, member: 355"] Easy way to check the LB is to wire up a headlight bulb and time how long it stays on. If the bulb is say 50 watts it draws just over 4 amps (50/12) so a good 50 amp/hr LB should run the bulb for at least 80% of the fully charged capacity so say 40/4 = 10 hours. In practice the bulb will start to dim after about 70% of the capacity is exhausted. If your LB runs the bulb for 50% capacity it is OK to keep for a while - anything less than this and it needs replacing. And Ian is right - LBs don't mind high charging currents (like 10 amps) for a while but when they are full they can be damaged by overcharging, so not a good idea to use 'normal' chargers. I use chargers specifically designed for LBs to keep them topped up over winter. [/QUOTE]
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EarlyBay Forums
General Earlybay Chat
help with my leisure battery
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