electrical:12v:self-jumpstarting
Differences
This shows you the differences between two versions of the page.
Both sides previous revision
Previous revision
Next revision
|
Previous revision
Next revision
Both sides next revision
|
electrical:12v:self-jumpstarting [2018/07/03 11:22] frater_secessus |
electrical:12v:self-jumpstarting [2020/06/23 11:14] frater_secessus |
Self-jumpstarting means jumpstarting one's own vehicle without the use of another vehicle. The most common way to do this is by [[electrical:12v:alternator|combining]] house and chassis batteries. | Self-jumpstarting means jumpstarting one's own vehicle without the use of another vehicle. The most common way to do this is by [[electrical:12v:alternator|combining]] house and chassis batteries. |
| |
===== solenoids ===== | |
Solenoids/relays will automatically self-jumpstart assuming there is enough voltage in the starter battery to energize the solenoid. It is a mechanical connection and power will flow both ways. | |
| |
===== relays ===== | ===== jumping from the house bank ===== |
| |
| It will be gentlest on the system to combine the batteries and allow the starter battery to come up a bit instead of immediately attempting to start. |
| |
| ==== solenoids ==== |
| |
| Solenoids/relays //always// self-jumpstart assuming there is enough voltage in the starter battery to energize the solenoid. It is a mechanical connection and power will flow both ways. |
| |
| ==== voltage sensing relays ==== |
| |
| It is common for VSRs to have a button to combine the batteries for self-jumpstarting. |
| |
| ==== relays ==== |
| |
[[electrical:12v:alternator#isolators|Solid state isolators]] are diode based and will not allow power to flow from the house battery to the starter battery. Therefore they cannot be used to self-jumpstart. | [[electrical:12v:alternator#isolators|Solid state isolators]] are diode based and will not allow power to flow from the house battery to the starter battery. Therefore they cannot be used to self-jumpstart. |
| |
| ==== DC-DC chargers ==== |
| |
| Some [[electrical:12v:b2b|DC-DC chargers]] with integrated [[electrical:solar:charge_controller|solar charge controllers]] can keep the starter battery maintained after the house batteries are charged. This would help avoid the "dead starter battery" situation in the first place. |
| |
| [Note from secessus: AFAIK none of the DC-DC chargers allow self-jumpstarting. If anyone knows otherwise, please point me to the documentation. Thanks!] |
| |
| |
| |
| |
===== jump packs ===== | ===== jump packs ===== |
electrical/12v/self-jumpstarting.txt · Last modified: 2024/03/22 08:19 by frater_secessus