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Reduce battery voltage.
Clash Royale CLAN TAG#URR8PPP
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I have grip warmers on a bike. basically just heat tape. I would like to reduce the supply voltage from lithium battery from 18 vdc to 12 vdc. My goal is to reduce warmer element temperature and increase battery life. What is the simplest way to do this? thanks!
batteries
asked 3 hours ago
Sean Craig
111
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Sean Craig is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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up vote
2
down vote
favorite
I have grip warmers on a bike. basically just heat tape. I would like to reduce the supply voltage from lithium battery from 18 vdc to 12 vdc. My goal is to reduce warmer element temperature and increase battery life. What is the simplest way to do this? thanks!
batteries
asked 3 hours ago
Sean Craig
111
New contributor
Sean Craig is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
1
Buck converter comes to mind. What have you found so far?
– winny
3 hours ago
Search for waterproof buck converters. You can also find adjustable ones to fine tune the temp. Just make sure to calculate or measure your max current draw before buying anything.
– Phil C
1 hour ago
add a comment |Â
up vote
2
down vote
favorite
up vote
2
down vote
favorite
I have grip warmers on a bike. basically just heat tape. I would like to reduce the supply voltage from lithium battery from 18 vdc to 12 vdc. My goal is to reduce warmer element temperature and increase battery life. What is the simplest way to do this? thanks!
batteries
asked 3 hours ago
Sean Craig
111
New contributor
Sean Craig is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I have grip warmers on a bike. basically just heat tape. I would like to reduce the supply voltage from lithium battery from 18 vdc to 12 vdc. My goal is to reduce warmer element temperature and increase battery life. What is the simplest way to do this? thanks!
batteries
batteries
asked 3 hours ago
Sean Craig
111
New contributor
Sean Craig is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 3 hours ago
Sean Craig
111
New contributor
Sean Craig is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 3 hours ago
Sean Craig
111
New contributor
Sean Craig is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 3 hours ago
Sean Craig
111
asked 3 hours ago
Sean Craig
111
111
New contributor
Sean Craig is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Sean Craig is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Sean Craig is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
1
Buck converter comes to mind. What have you found so far?
– winny
3 hours ago
Search for waterproof buck converters. You can also find adjustable ones to fine tune the temp. Just make sure to calculate or measure your max current draw before buying anything.
– Phil C
1 hour ago
add a comment |Â
1
Buck converter comes to mind. What have you found so far?
– winny
3 hours ago
Search for waterproof buck converters. You can also find adjustable ones to fine tune the temp. Just make sure to calculate or measure your max current draw before buying anything.
– Phil C
1 hour ago
1
1
Buck converter comes to mind. What have you found so far?
– winny
3 hours ago
Buck converter comes to mind. What have you found so far?
– winny
3 hours ago
Search for waterproof buck converters. You can also find adjustable ones to fine tune the temp. Just make sure to calculate or measure your max current draw before buying anything.
– Phil C
1 hour ago
Search for waterproof buck converters. You can also find adjustable ones to fine tune the temp. Just make sure to calculate or measure your max current draw before buying anything.
– Phil C
1 hour ago
add a comment |Â
3 Answers
3
active
oldest
votes
up vote
4
down vote
Adding a resistor half the resistance of the elements will get you down to 12V, and increase battery life by 50%, but you end up wasting a third of the energy in the battery (unless you use that resistor to keep something else warm). There are cheap DC-DC buck converter modules available, that will regulate down to 12V, that then gets your battery life to more than double - power at the element falls by 56%, power consumed at the battery falls by that less the efficiency penalty of the converter.
answered 2 hours ago
Phil G
1,33438
add a comment |Â
up vote
2
down vote
A resistor dropping 18 down to 12V wastes $1over3$ of the energy.
A DC-DC buck converter can be about 90 percent efficient, but the cheap ones typically get about 85% - wasting about $ 1over 6$, but PWM can improve on that by removing the inductor and capacitor losses inherent in DC-DC converters.
Look for a PWM dimmer module that meets your requirements or build one from one of the many designs available on-line.
for heating applications a lower modulation speed can be used than is used for lighting, but lighting modules are more common.
If you don't need that last fraction of the available energy you can just go with a cheap DC-DC converter, the cheap XL4015 modules run well at up-to 2A and the good ones will go higher.
answered 2 hours ago
Jasen
8,6621327
Is there really such a thing as "wasting" energy when the whole objective is to produce heat? Just make sure the heat gets dissipated where you want it.
– R..
3 mins ago
add a comment |Â
up vote
1
down vote
Adding a resistor at the input will lower the current and the wattage this should help make the battery last longer but the heaters will not get as hot
answered 3 hours ago
David Martell
111
New contributor
David Martell is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |Â
3 Answers
3
active
oldest
votes
3 Answers
3
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
4
down vote
Adding a resistor half the resistance of the elements will get you down to 12V, and increase battery life by 50%, but you end up wasting a third of the energy in the battery (unless you use that resistor to keep something else warm). There are cheap DC-DC buck converter modules available, that will regulate down to 12V, that then gets your battery life to more than double - power at the element falls by 56%, power consumed at the battery falls by that less the efficiency penalty of the converter.
answered 2 hours ago
Phil G
1,33438
add a comment |Â
up vote
4
down vote
Adding a resistor half the resistance of the elements will get you down to 12V, and increase battery life by 50%, but you end up wasting a third of the energy in the battery (unless you use that resistor to keep something else warm). There are cheap DC-DC buck converter modules available, that will regulate down to 12V, that then gets your battery life to more than double - power at the element falls by 56%, power consumed at the battery falls by that less the efficiency penalty of the converter.
answered 2 hours ago
Phil G
1,33438
add a comment |Â
up vote
4
down vote
up vote
4
down vote
Adding a resistor half the resistance of the elements will get you down to 12V, and increase battery life by 50%, but you end up wasting a third of the energy in the battery (unless you use that resistor to keep something else warm). There are cheap DC-DC buck converter modules available, that will regulate down to 12V, that then gets your battery life to more than double - power at the element falls by 56%, power consumed at the battery falls by that less the efficiency penalty of the converter.
answered 2 hours ago
Phil G
1,33438
Adding a resistor half the resistance of the elements will get you down to 12V, and increase battery life by 50%, but you end up wasting a third of the energy in the battery (unless you use that resistor to keep something else warm). There are cheap DC-DC buck converter modules available, that will regulate down to 12V, that then gets your battery life to more than double - power at the element falls by 56%, power consumed at the battery falls by that less the efficiency penalty of the converter.
answered 2 hours ago
Phil G
1,33438
edited 2 hours ago
answered 2 hours ago
Phil G
1,33438
answered 2 hours ago
Phil G
1,33438
answered 2 hours ago
Phil G
1,33438
1,33438
add a comment |Â
add a comment |Â
up vote
2
down vote
A resistor dropping 18 down to 12V wastes $1over3$ of the energy.
A DC-DC buck converter can be about 90 percent efficient, but the cheap ones typically get about 85% - wasting about $ 1over 6$, but PWM can improve on that by removing the inductor and capacitor losses inherent in DC-DC converters.
Look for a PWM dimmer module that meets your requirements or build one from one of the many designs available on-line.
for heating applications a lower modulation speed can be used than is used for lighting, but lighting modules are more common.
If you don't need that last fraction of the available energy you can just go with a cheap DC-DC converter, the cheap XL4015 modules run well at up-to 2A and the good ones will go higher.
answered 2 hours ago
Jasen
8,6621327
Is there really such a thing as "wasting" energy when the whole objective is to produce heat? Just make sure the heat gets dissipated where you want it.
– R..
3 mins ago
add a comment |Â
up vote
2
down vote
A resistor dropping 18 down to 12V wastes $1over3$ of the energy.
A DC-DC buck converter can be about 90 percent efficient, but the cheap ones typically get about 85% - wasting about $ 1over 6$, but PWM can improve on that by removing the inductor and capacitor losses inherent in DC-DC converters.
Look for a PWM dimmer module that meets your requirements or build one from one of the many designs available on-line.
for heating applications a lower modulation speed can be used than is used for lighting, but lighting modules are more common.
If you don't need that last fraction of the available energy you can just go with a cheap DC-DC converter, the cheap XL4015 modules run well at up-to 2A and the good ones will go higher.
answered 2 hours ago
Jasen
8,6621327
Is there really such a thing as "wasting" energy when the whole objective is to produce heat? Just make sure the heat gets dissipated where you want it.
– R..
3 mins ago
add a comment |Â
up vote
2
down vote
up vote
2
down vote
A resistor dropping 18 down to 12V wastes $1over3$ of the energy.
A DC-DC buck converter can be about 90 percent efficient, but the cheap ones typically get about 85% - wasting about $ 1over 6$, but PWM can improve on that by removing the inductor and capacitor losses inherent in DC-DC converters.
Look for a PWM dimmer module that meets your requirements or build one from one of the many designs available on-line.
for heating applications a lower modulation speed can be used than is used for lighting, but lighting modules are more common.
If you don't need that last fraction of the available energy you can just go with a cheap DC-DC converter, the cheap XL4015 modules run well at up-to 2A and the good ones will go higher.
answered 2 hours ago
Jasen
8,6621327
A resistor dropping 18 down to 12V wastes $1over3$ of the energy.
A DC-DC buck converter can be about 90 percent efficient, but the cheap ones typically get about 85% - wasting about $ 1over 6$, but PWM can improve on that by removing the inductor and capacitor losses inherent in DC-DC converters.
Look for a PWM dimmer module that meets your requirements or build one from one of the many designs available on-line.
for heating applications a lower modulation speed can be used than is used for lighting, but lighting modules are more common.
If you don't need that last fraction of the available energy you can just go with a cheap DC-DC converter, the cheap XL4015 modules run well at up-to 2A and the good ones will go higher.
answered 2 hours ago
Jasen
8,6621327
edited 2 hours ago
answered 2 hours ago
Jasen
8,6621327
answered 2 hours ago
Jasen
8,6621327
answered 2 hours ago
Jasen
8,6621327
8,6621327
Is there really such a thing as "wasting" energy when the whole objective is to produce heat? Just make sure the heat gets dissipated where you want it.
– R..
3 mins ago
add a comment |Â
Is there really such a thing as "wasting" energy when the whole objective is to produce heat? Just make sure the heat gets dissipated where you want it.
– R..
3 mins ago
Is there really such a thing as "wasting" energy when the whole objective is to produce heat? Just make sure the heat gets dissipated where you want it.
– R..
3 mins ago
Is there really such a thing as "wasting" energy when the whole objective is to produce heat? Just make sure the heat gets dissipated where you want it.
– R..
3 mins ago
add a comment |Â
up vote
1
down vote
Adding a resistor at the input will lower the current and the wattage this should help make the battery last longer but the heaters will not get as hot
answered 3 hours ago
David Martell
111
New contributor
David Martell is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |Â
up vote
1
down vote
Adding a resistor at the input will lower the current and the wattage this should help make the battery last longer but the heaters will not get as hot
answered 3 hours ago
David Martell
111
New contributor
David Martell is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |Â
up vote
1
down vote
up vote
1
down vote
Adding a resistor at the input will lower the current and the wattage this should help make the battery last longer but the heaters will not get as hot
answered 3 hours ago
David Martell
111
New contributor
David Martell is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Adding a resistor at the input will lower the current and the wattage this should help make the battery last longer but the heaters will not get as hot
answered 3 hours ago
David Martell
111
New contributor
David Martell is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
answered 3 hours ago
David Martell
111
New contributor
David Martell is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
answered 3 hours ago
David Martell
111
answered 3 hours ago
David Martell
111
111
New contributor
David Martell is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
David Martell is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
David Martell is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |Â
add a comment |Â
Sean Craig is a new contributor. Be nice, and check out our Code of Conduct.
Sean Craig is a new contributor. Be nice, and check out our Code of Conduct.
Sean Craig is a new contributor. Be nice, and check out our Code of Conduct.
Sean Craig is a new contributor. Be nice, and check out our Code of Conduct.
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1
Buck converter comes to mind. What have you found so far?
– winny
3 hours ago
Search for waterproof buck converters. You can also find adjustable ones to fine tune the temp. Just make sure to calculate or measure your max current draw before buying anything.
– Phil C
1 hour ago