Power Select Starter Review
That sounds like what it does, the groan sound is probably the starter trying to force itself to spin but can't. At worst it won't work, and need other repairs or replacement. Alongside our reviews of the best portable jump starters, we share the top aspects to consider (like how much peak amperage and capacity you really need).
I've used this one without any issues. Supposedly rated up to a 5L gas or 4L diesel. Also has a small flashlight built in and doubles as a power bank if you need it.
Weighing in at a measly two pounds, it's the smallest jump starter in our test overall. It's got decent power, an override button, an easy interface, and two work lights. I have a TYC starter in my Celica and it works great! Only had it for 4 months but starts strong and fast every time I turn the key.
The Schumacher DSR132 ProSeries packs more power than nearly any other jump starter, providing superior reliability. Its the ultimate in supercapacitor and lithium-ion technology, combining the best of both worlds, but it has a higher price tag to match its advanced features.