Will there be any issue with the battery if the top speed is increased?
11-12-18, 11:56 AM
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Will there be any issue with the battery if the top speed is increased?
Hello
I got a new e-bike which is 250 Watt 32nm Rear Hub Motor that is powered by a 7.8Ah Lithium Ion Battery. the default speed is 15 mph and now I have increased to 21 mph. I heard some one saying that battery will go down in no time if we increase the speed above the default setting. at default speed I get around 20 miles while using pedal assist. Will there be extreme drop out of the battery power because I increased the top speed ?
I got a new e-bike which is 250 Watt 32nm Rear Hub Motor that is powered by a 7.8Ah Lithium Ion Battery. the default speed is 15 mph and now I have increased to 21 mph. I heard some one saying that battery will go down in no time if we increase the speed above the default setting. at default speed I get around 20 miles while using pedal assist. Will there be extreme drop out of the battery power because I increased the top speed ?
11-12-18, 12:19 PM
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11-12-18, 12:28 PM
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Hello
I got a new e-bike which is 250 Watt 32nm Rear Hub Motor that is powered by a 7.8Ah Lithium Ion Battery. the default speed is 15 mph and now I have increased to 21 mph. I heard some one saying that battery will go down in no time if we increase the speed above the default setting. at default speed I get around 20 miles while using pedal assist. Will there be extreme drop out of the battery power because I increased the top speed ?
I got a new e-bike which is 250 Watt 32nm Rear Hub Motor that is powered by a 7.8Ah Lithium Ion Battery. the default speed is 15 mph and now I have increased to 21 mph. I heard some one saying that battery will go down in no time if we increase the speed above the default setting. at default speed I get around 20 miles while using pedal assist. Will there be extreme drop out of the battery power because I increased the top speed ?
11-12-18, 12:31 PM
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I meant both. since i'm new to this ebike universe. Wanted to know if it's safe to increase the top speed. I would surely let go mileage accordingly but something like 100 to 0% drop in no time will worry me. Thanks for being patient
Last edited by jonahmano; 11-12-18 at 12:43 PM.
11-12-18, 12:55 PM
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In general terms it takes about twice the power to go 21 as it does 15, so that would cut the battery time in half. The other consideration is maxing out that 250 watt motor.
11-12-18, 02:55 PM
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Yes, if you were to ride the same bikes with the same batteries, one at 15 mph and one at 20 mph, the battery ridden at higher speed will need to be recharged sooner, and in the long run would take less charging cycles before it no longer holds charge.
It's hard to predict how much shorter its lifetime would be, because that depends on how you store the battery when it's not used and how much you run it down before a charge. In general, running a battery down to where it won't power the bike is harder on its life than recharging when the battery is only partly used. At the same time, keeping a battery fully charged in hot weather is also hard on life.
If you had a 14AH battery, it probably wouldn't be as important as the bigger battery could take the higher load in stride. With the smaller one, you might get closer to the max limits of the cells.
Just the same, we gotta have fun, Going faster always has a cost on reliability of parts, and cost of operation. It's something the owner has to balance.
It's hard to predict how much shorter its lifetime would be, because that depends on how you store the battery when it's not used and how much you run it down before a charge. In general, running a battery down to where it won't power the bike is harder on its life than recharging when the battery is only partly used. At the same time, keeping a battery fully charged in hot weather is also hard on life.
If you had a 14AH battery, it probably wouldn't be as important as the bigger battery could take the higher load in stride. With the smaller one, you might get closer to the max limits of the cells.
Just the same, we gotta have fun, Going faster always has a cost on reliability of parts, and cost of operation. It's something the owner has to balance.
11-13-18, 02:55 PM
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yes, if you were to ride the same bikes with the same batteries, one at 15 mph and one at 20 mph, the battery ridden at higher speed will need to be recharged sooner, and in the long run would take less charging cycles before it no longer holds charge.
It's hard to predict how much shorter its lifetime would be, because that depends on how you store the battery when it's not used and how much you run it down before a charge. In general, running a battery down to where it won't power the bike is harder on its life than recharging when the battery is only partly used. At the same time, keeping a battery fully charged in hot weather is also hard on life.
If you had a 14ah battery, it probably wouldn't be as important as the bigger battery could take the higher load in stride. With the smaller one, you might get closer to the max limits of the cells.
Just the same, we gotta have fun, going faster always has a cost on reliability of parts, and cost of operation. It's something the owner has to balance.
It's hard to predict how much shorter its lifetime would be, because that depends on how you store the battery when it's not used and how much you run it down before a charge. In general, running a battery down to where it won't power the bike is harder on its life than recharging when the battery is only partly used. At the same time, keeping a battery fully charged in hot weather is also hard on life.
If you had a 14ah battery, it probably wouldn't be as important as the bigger battery could take the higher load in stride. With the smaller one, you might get closer to the max limits of the cells.
Just the same, we gotta have fun, going faster always has a cost on reliability of parts, and cost of operation. It's something the owner has to balance.
