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February 8, 2018

Complete battery backup for 24V equipment in vehicles


battery backup for vehicles
Small, self-contained automotive battery backup system with 1.2 AH battery
24 volt DC UPS module or battery backup (BBU) keeps 24 volt equipment alive in cars, trucks and taxis using an internal sealed lead acid battery.
UPS and battery back-up products for automobiles and cars
More vehicle battery backup products
complete 12V UPS BBU including battery and  box
Complete 12V DC-UPS with control module and 1.2AH lead acid battery
  Quantity 1-49 50-99 100-499 500+
PST-Backup-1.2-24V battery backup 1.2AH 24V with 12 Amps pass through add_to_cart.gif $180 $165 $155 $140
           
This DC-UPS contains a 1.2 amp-hour sealed lead acid battery. It is charged from the vehicle's electrical system and switches your load to its internal battery when the engine is turned off, or at any other time that the electrical bus drops below 23.6 volts. Keep computers and video systems alive during engine starting or other interruptions in power.
Detailed Specifications PST-Backup-1.2-24V
Maximum pass-through current 12 Amps continuous
Max Charge Current 400 milliamps.
Maximum input voltage (steady state) 30V
Maximum input voltage (transient) 40V
Maximum pass-through wattage 288 Watts
Transient pass-through current 16 amps for 40 seconds
20 amps for 5 seconds
Over 20 amps immediate shutdown
Transition time Less than 50 microseconds from main battery to auxiliary battery
less than 50 microseconds from auxiliary battery to main battery. We have a capacitor to keep the voltage up during the transition and have not had any problem with customer's equipment dropping out during the switchover.
Backup time 12A for 50 seconds
9A for 100 seconds
6A for 200 seconds
2A for 1000 seconds
1A for 44 minutes
60mA for 20 hours
Charge voltage Factory selectable, default is 23.6V
This is the input voltage at which the internal charger starts boosting the voltage to charge the auxiliary battery
Internal battery 1.2 AH 24V Sealed lead acid battery
Charge algorithm Constant current until the battery voltage reaches 26.8 volts, taper charge above 26.8 volts to zero current at 28.2 volts
Nominal Battery Voltage 24 Volts
Size 3 x 4.9 x 5.7 inches (6.8" incuding flanges)
76 x 124 x 145 mm (173 mm including flanges)  
Vehicle's electrical bus reconnects to the load when its voltage raises to: 26 volts
External battery is disconnected from the load when the external battery's voltage drops below 23.6 volts
The available custom setpoints are Main On, Main Off, Charger On, Charger Off, Aux On, Aux Off This document describes how to engineer and specify the 6 custom setpoints if desired
Temperature Range Minimum ambient temperature -10°C (-40°C available upon request)
Maximum ambient temperature of 70°C
When the case temperature gets above 45°C the charge current is automatically reduced to maintain system operation at higher temperatures.
Storage Temperature -20°C to 70°C
Connection Screw terminals, included are spade terminal adapters as shown below
Included spade (faston) connector adapters Shows included spade connector adapters
LEDs LEDs light up showing whether the load is being powered by the car or the auxiliary battery
Weight 3.3 lbs or 1.5 kg
 
User's guide for 24V 12A version
Dimensioned drawing
The PST-Backup UPS devices are designed to keep your equipment from losing power or rebooting during engine startup, ensuring these spikes and sags in power don't shorten the life of your mission critical electronics. We do this by providing uninterrupted, clean, consistent power to your equipment, extending the life of your electronics.

The backup prevents your equipment from running the vehicle's battery down avoiding jump-starts. It switches over to the auxiliary battery when the engine is shut off and the alternator stops or the car's battery drops below 11.8 volts. This means you never have to worry about that after-market equipment leaving you with a dead battery in the morning.

The PST-Backup isolates its battery from the vehicle, so it can't be discharged by the vehicle's other electronics, and it won't try to participate in the engine startup process.

The PST-Backup DC-UPS powers your equipment in the vehicle using the car electrical system, but switches to external battery power when the car's battery is removed, stolen, or drops below a predetermined voltage, acting as a battery backup (BBU) and power conditioner.

Allows for safely charging our internal battery from the car's electrical bus by isolating and current regulating the connection to the auxiliary battery. This uninterruptible power supply is designed to withstand the harsh electrical and temperature requirements of automotive equipment including spike, dropouts, load dumps, jump-starting, high and low temperatures.
automotive battery backup system, car battery backup system, truck battery backup system  


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