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Your cart is empty.The jump start mode will initiate a charge sequence, collecting energy from the battery. Once the ultracapacitor is charged, it will assist the low batteries to provide the power the crank the engine. The 12V Ioxus UltraCapacitor is designed to work with at least one 12V battery connected in parallel, and the unit needs at least 6V to be able to turn on. Often, when installing the UltraCapacitor, one or more batteries can be removed. Features: Increased Reliability - prevents stranded vehicles, starts in the harshest of conditions Made in the USA Increased Efficiency - powers hundreds of Stop/Start events per day, ideal for delivery vehicles Rapid Payback - Keeps your trucks rolling Battery life doubled Starter life doubled Built-in, no service call, "Jump Start" - even with a dead battery 10 Minute Installation- direct battery replacement (2 Wire) - No Rewiring! ELECTRICAL SPECIFICATIONS: Cold Cranking Amps [Nom]: 1100 Voltage (Rated/Surge) [VR/VS]: 7-14.5 / 80 Reverse Polarit Protection (V): -30 DC ESR 10ms (mOhm) [Nom/Max]: 3.5 / 5.5 Initial Charging Time (min) [Nom/Max]: 9 / 25 Recommended Engine Size (Liters):
C Hawley
Reviewed in the United States on March 3, 2025
Realistically for the price, you're not going to beat it. I use this on my system to help reduce voltage drop and I push around 3000 Watts. I recently swapped over my entire system to my new (to me) daily. The battery was so low it wouldn't start because I had the doors open all day trying to hook up my system and I turned on the app and put it in run mode and it fired right up. Definitely help keep my last car running because it went through alternators because of sound systems without capacitors before I got this thing. And it already has a lot of bad grounds but it stayed running because of this thing. I'll probably get a second one and some kind of solar charging mechanism to go with alternator charging just to be safe when I upgrade my amp to something bigger.
dan
Reviewed in the United States on February 16, 2025
It works but not as powerful as advertised
Charlene Rubush
Reviewed in the United States on January 26, 2025
Bought it with the intention to improve my stereo system. Work perfectly for bringing my voltage to a steady state but had a unexpected positive effect. After several days of 20° weather my truck battery went dead but after allowing the ultra capacitor to charge up for only 5 to 10 seconds it started perfectly, even though it was only being supplied from a nearly dead battery. Highly recommended
KTOWN_SRT
Reviewed in the United States on April 4, 2025
This is amazing; I already had to use the battery jump feature and it worked flawlessly after music drained the battery.
Mike
Reviewed in the United States on March 1, 2024
This is a Group 31 "battery size" UltraCap with 375 Farad capacitance.I love this thing. What a great price for such a great energy boost to the electrical system. Came in great condition. Just needed to be wiped down. Minor scuffs but even better shape than the pictures show.I originally purchased this to help with bass hits dimming headlights. What I got instead was that...plus a huge boost to my electrical system in my truck. Great power on tap. This thing just wants to share it's magnified power boost that it has with Any and everything that wants to take it. It will give it to you if want it! :-)Bottom line...BUY IT!!Didn't even mention whom you are buying from. BIG JEFF AUDIO hands down has the best customer service in the business. BAR NONE
ANONYMOUS
Reviewed in the United States on December 14, 2024
Bought one for my son to see how well it works with his system. Package arrived completely destroyed, nothing inside but a few sheets of plastic, some destroyed Styrofoam, and a broken lanyard.... the capacitor appears to be okay, but I won't know until we install it on Christmas. Was going to buy two additional, but the potential to be destroyed is too risky
ReconRC7287
Reviewed in the United States on October 11, 2024
Basically the title says it all. The device works great and running a signal lead acid battery in my car, I'm able to keep my voltage over 14 volts. If I'm really pushing the system and my SALT 3k amp, voltage will hit high 13's for an instant.Tge Bluetooth connectivity to this ultra capacitor is awesome, the app is great if you need to start your car and your battery has died. If your on the fence about getting one, just do it. Once you use it for a couple of weeks you'll be coming back to get another. As long as you don't mind the scuff marks / physical appearance then you will love this item.
Nicholas Matis
Reviewed in the United States on August 31, 2023
It was not B-Stock. It was definitely used. It will put out some power though, and keep the Voltage pretty good. I have 135 amp alternator, with 160 Ah of AGM batteries. It will hold the voltage with a continuous power at about 1k-1.6k rms. Overall works prettygood. I have no room, so next stop 250 amp alt.Update: getting a 250 amp alt. Don’t care for the ~300 amp draw shutdown, running 2 amps so thinking about getting another one for each amp. 300 amps each should do it 😉
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