It’s a scenario that’s frustrating at best and a nightmare at worst: Your car battery is out of juice when you’re in the middle of nowhere. Or maybe you go for long periods without driving your vehicle or live in a climate that increases the chance of your battery running out of charge. To avoid this issue, we recommend the Hulkman Sigma 5 Car Battery Charger, which is now available on Amazon for nearly 50% off its original price.
Think of the Hulkman Sigma 5 as preventive medicine for your car, keeping your battery charged if it hasn’t been used in a while or reviving it if needed. We should note that this is a battery charger and not a jump starter (if you’re in need of the latter, we suggest the NOCO Boost). But for an easy-to-use device to revive a dead battery (or keep it healthy), you can’t beat the Hulkman. Let’s dig into how it works.
Hulkman Sigma 5 Car Battery Charger, $89.99 (10% off, with additional $40 coupon)
The one word we would use to describe the Hulkman Sigma 5 is “versatile.” It can be used with multiple types of batteries, including deep-cycle, AGM, lifepo4, flooded, gel, EFB and calcium, just to name a few. In other words, whether you have a car, motorcycle, boat, lawn mower or anything that has a battery ranging from 15Ah to 120Ah, you can be sure the Hulkman can handle it. It’s versatile when it comes to voltage too, as it can charge 6-volt and 12-volt lead-acid batteries as well as 12-volt lithium-ion batteries.
The charger itself is small enough to fit in your pocket, but it’s constructed of tough shockproof and waterproof material. It can also be mounted on your garage wall if you plan to use it for ongoing charging.
It’s easy to use the Hulkman Sigma 5, too. Just plug it to your battery using the included clamps — and if you’re like us and sometimes get mixed up about which clamp goes where, it comes with reverse polarity protection. The easy-to-read 3.2-inch display shows the amount of charge for the battery you’re plugged into as well as the type of battery and voltage. It also shows alerts for a bad battery, reverse polarity and charger overheating.
The battery has a nine-step charging optimizer to keep your battery fresh if it’s sitting around for long periods. And in cases where your 12-volt battery is just about out of juice (as low as 0.3 volts), the Sigma 5 can do wonders, operating with AI-guided optimization, super repair and automatic loading modes to bring it back from the dead.
So, for a battery charger that can handle all types of batteries and takes care of upkeep and battery revival equally well, all of it in a conveniently small and durable casing, it’s easy to see why The Hulkman Sigma 5 is our pick. We recommend picking one up while this massive Amazon sale lasts!
