Down4sound D4S SUPER Capacitor Bank | 500 Farads

Also bought the d4s 8 amp charger, which was perfect for my standards, these have to be slow charged so I also used a 2.7 volt bulb, it took around 20 hours to fully charge, but I was in no rush and wanted a very slow charge anyway, and it does what it is supposed to do, no more dimming lights, my voltage never reaches below 12.2 I also have the lithium 6.0, and 0 gauge ofc big 3 and ofc 0 gauge front to back with a 200amp alt. No issues

Awesome product. Works great and really impressed on how much it helps with voltage droppage. Only downside is I wish d4s would ship a light bulb resistor with it but other than that it's great.

These are one of the most inexpensive ways to purchase a set of 6 XS power Ultracapacitor banks. They're already bussed and packed in a small footprint. Simply charge them with a 12v light bulb and lithium pulse charger. The light goes out and you are fully charged and ready to install. I have a Salt 8 with an Titan 8 and 500Farad cap bank for each of the 3 positive power inputs. Even an ECU controlled 21 Frontier can hold 12.8v and charge @13.5 . They can be ran up too 16v for those interested in changing their charging voltage. Best investment you can get is a solid electrical system. Your amps are only as good as the power you can supply them.

I think it would’ve been real nice when the customer pays $350 if you could add the bolts that go on the top so the customer can hook it up instead of having to go to Home Depot and spend more money to buy bolts.

Works good but not terminals or charging light.

Its soooo nice i bought it twice literally bought one installed it man what a difference it made in my system with my lithium battery i orginally didnt think i needed one for my big build dual mechman alternators and a lot of lithium but it worked so good in my car figured it cant hurt nothing can only help havent installed it yet but will update

This super cap is awesome it really works was skeptical at first bad experience with caps from back in the day this super cap is the truth compared this one to ones similar spec wise they were the same but this one is much cheaper got it paired with a lithium and it made a huge difference think I will by another one before the price goes up you can almost get two of these for the price of one in other name brands

Package received, very nice, thank you! Just need to charge and install it now!

I love it! Package receives early! Exactly what I needed! Later on I can get another one and do my install! Thank you

I thought I was bumpin before but now with this, It is game changing. I have good electrical but transients wouldn't be as defined the louder I got, but with this I can be full tilt 1200 watts and the beat is harder and more dynamic than ever. Tried it out on 2400 watts 1 ohm load and I was floored. Do yourself a favor and get one of these if you have at least 1200 watts or more. Easy to charge up with a 2amp 12v lithium charger, took only a few hours.