AN UNBIASED VIEW OF BEST BACKUP POWER GENERATOR

I exploit this for goods like my mobile phone, a small speaker, and headphones, but I’ve also powered my laptop on it for 2 total power cycles. given that my car camping set up is minimal-tech (no portable fridge to become discovered), I’ve hardly ever necessary anything at all bigger than 300 Wh, or perhaps the equal of about 25 phone costs.