See full version: Can you car battery be on an angle
Putting all this together - Example:
Vehicle: Miata
Batteries: 12 - 12V Lead-Acid, rated at 100 ah
Pack Voltage: 144V (12 batteries x 12V each = 144V)
Pack Size: 14.4 Kwh (144V x 100 ah = 14.4 Kwh - Remember, we can not use all this)
Usable Pack: 6.336Kwh (14.4 x 0.8 x 0.55 = 6.336 Kwh usable) more
Watt-Hour per Mile (Wh/m):
The basic rule of thumb for vehicle is:
Small Vehicle 250-300wh/m
Small Pickup 350-400wh/m
The calculation is: Volts x (Amp Draw / MPH ) = Wh/m
The basic formula for determining distance is: ( KWh of pack / wh/m ) = Distance
*note: there are adjustments that have to be made to this formula, see usable pack size below*
“Our dual battery mount package is designed so that you can use one or two batteries,” Bickel said. “Remember too that by mounting the batteries in the center of the car, you have the option of moving them forward or back, which can influence the weight distribution. I also feel a battery (or a pair of batteries) is safer when mounted between the frame rails. In a crash, the fuel cell has a better chance of withstanding an impact than the batteries. The batteries are more protected when mounted between the rails.”
Sanctioning body rules mandate a battery shut-off switch in any drag or street/strip car with a rear-mounted battery or batteries. This will allow someone to turn all electrical power off in the event of an accident. There are a couple of different switch layouts available, but the most common layout includes a switch mounted inside the trunk with an external linkage/knob arrangement to turn the power on or off. Some master switches are only designed for momentary “on” service, which means they have no continuous rating. That’s why something like a common Ford starter solenoid can’t be used as a master disconnect switch. There are almost 200 different battery disconnect switches available from Summit Racing, and several have continuous ratings of over 300 amps. here
Keep in mind, though, other batteries might mandate a specific mounting orientation. here
It’s very important to mount batteries securely.
The direction a battery is mounted can prove critical for some battery types. Many OEM factory mountings place the battery in a location that is parallel to the sides of the vehicle. In older-technology flooded wet cell batteries, this prevents the internal plates from colliding and shorting if the internal acid solution migrates away from the plates. It’s a perfect system for a drag race application, because when the car hooks, the forces present will not throw the plates into one another if they’re dislodged. here
Finally, you’ll need to consider how you’ll charge your batteries. If the batteries are mounted low in the car and hidden under sheetmetal, charging can be difficult. That’s why remote charging jacks have become popular. Many charging jacks will allow you to charge your batteries from the outside of the car without opening or removing the trunk lid.
Poor storage conditions over a long period can result in deep discharge, which can irreversibly damage the battery. Therefore, special care must be taken as to where, and at what temperature the battery is stored.
Storage in a cellar is possible in principle, but the room must be dry. The optimal solution is a room in the house in which there is a dry atmosphere and a constant temperature, even in winter. here
The humidity of the air can also affect the charge level if it condenses on the battery and causes small leakage currents between the positive and negative terminals, which causes faster discharge. here
The following buttons must be pressed in sequence in order to re-initialise electrical steering column adjustment.
The battery is located in the luggage compartment under the storage floor. [links]
Effect of disconnection or total discharge of battery on electrical systems in the vehicle and the precautions to be taken
The mixture adaptation is also lost. here
This completes the adaptation of the throttle valve adjusting unit. here
IMPORTANT: After you disconnect the battery, all settings get reset