Maxwell Durablue super capacitor 24V 375F Module with balance circuit board×1set （3.0V 3000F×8pcs） 1.long life: up to 8 million to 120 million cycles 2.High Power density: up 6700w/kg 3.Low ESR: can be used as a rechargeable battery and ideal for back up purposes 4.Quick charge: charging 10 seconds to 10 minutes to reach its rated capacity of more than 95% 5.Quality standard:ISO 9001:2000;ISO 9001:2008;ISO 14001:2004 6.Excellent service: ensure products quality,promise one year after-sold service,there is no worry for you Suitable for: auto rectifier, can improve/stereo/speaker, extend battery life, balance voltage, series add fuse and wire Can be used in parallel on the battery! Effect:More than 30 percent of the slopes and powerful features are also used for solar energy.