autowit 12V Battery-less Portable Car Jump Starter

【Ultra-Safe】Built-in super capacity activates power in a physical way, keeping users from risks of spark or explosion.
【Reliable】Works in extreme weather conditions (temperature between -40℉ to 158℉). CE, FCC, RoHS certificated.
【Convenient】No need to pre-charge it at home before use. Just plug and start. Instant charging within 3 minutes.
【Longer Lifespan】Super capacity starter with extended lifetime. Frequently repeated use allowed within its lifetime.
【Multi-Application】Suitable for any vehicle up to 5.0L gas/3.0L diesel engine, e.g. a sedan, SUV, van, truck, boat, etc