Fully automatic charger. Optimized for 6Vand 12V batteries. Features built-in clamps. Bright LED display. Reliable battery tester. Simple to use. Durable.
Its power cable could be a bit longer.
Extremely compact. Optimized for 6V and 12V batteries. Features 2 integrated alligator clips. Repairs damaged batteries. Weather-resistant. Handy LED indicator light.
Its LED light could be a bit brighter.
Works with all 12V batteries. Shock-proof. Splash-proof. Weather-proof. Rust-proof. Dependable. Bundled with 3 pairs of connector cables. Temperature gauge. Speedy charge time.
Buyers may not use all of its bundled connector cables.
Especially inexpensive. Made for all 12V batteries. Integrated timer protects battery. Slim. Automatic design. Includes 3 pairs of cables. Spark-free.
We recommend these products based on an intensive research process that's designed to cut through the noise and find the top products in this space. Guided by experts, we spend hours looking into the factors that matter, to bring you these selections.
In today's technological society, we have countless battery-powered devices around the home and office. Laptops, cell phones, tablets, cordless phones, remote controls, RC vehicles, portable speakers, smart home devices – all of them have batteries, and all of those batteries need charging. That’s why you need a reliable battery charger – or more than one.
While some devices come with a battery charger included, others require you to purchase a separate charger, and finding the right one can be confusing. The right battery charger for you depends on the variety and size of batteries you want to charge, in addition to a range of other factors.
Manual battery chargers charge batteries continuously, but It's very easy to undercharge or overcharge your batteries. We'd only recommend a manual charger if you don't have much to spend.
LED indicator light to show battery charging
No light to show battery fully charged
Don’t switch off when battery fully charged
Possible to over- or under-charge battery
Smart chargers have a microprocessor inside that enables the charger to tell when the batteries are fully charged, at which point they shut off automatically. Smart chargers are worth the higher cost.
Charge level of battery on screen
Shut off automatically when battery charged
Can’t over- or under-charge battery
Trickle chargers are like smart chargers, but instead of turning off completely when the battery is fully charged, these constantly "trickle" a small level of power into the battery. These are for batteries that slowly lose power when not in use.
Prevent discharge when battery not in use
Battery stays ready for use
Don't work on lithium-ion batteries
Battery chargers come in a range of sizes to handle everything from small household batteries to car or boat batteries. Some can charge just one type of battery, while others are universal models, compatible with batteries of various sizes. Think about what size batteries you need to charge and choose your charger accordingly. You might need to buy more than one charger if you have a wide range of battery sizes because it's rare to find one charger that can take on both household and vehicle batteries.
What type of battery will you be charging? Popular battery types include lithium-ion (Li-ion), nickel-metal hydride (NiMH), nickel-cadmium (NiCd), and lead acid. Not all chargers are compatible with all types of batteries. If you're unsure of the composition of the batteries you want to charge and you can't find it written on the batteries, you'll need to contact the battery manufacturer.
How quickly can a battery charger take a battery from flat to fully charged? That depends on the charger you choose. Battery chargers are generally classed as either slow, fast, or superfast.
Slow chargers take somewhere between six and ten hours, so most users leave their batteries in them overnight.
Fast chargers are significantly quicker, taking roughly one to four hours to fully charge batteries.
A battery charger’s capacity refers to the number of batteries it can charge at one time. Those models designed for large vehicle batteries can usually only charge one at a time. Those designed for small household batteries may be able to take up to eight at once. The right capacity for you depends on your battery needs. If you only want to charge a couple of AA batteries at once, you probably don’t need a model that holds eight batteries.
You can find battery chargers across a wide range of price points, from less than $10 to over $100.
You can find basic manual battery chargers for household batteries for $5 to $15. These aren't the best chargers out there, but one will suffice for occasional use.
Most mid-range battery chargers cost roughly $15 to $40. These are usually smart chargers, but you might find some manual models for large batteries.
If you're looking for high-end battery chargers for large batteries, you can generally expect to pay between $40 and $100, but you can find some very high-powered models that cost even more.
Check the voltage of your chosen battery charger. Some chargers are designed to charge batteries of a certain voltage only. Universal models should adapt to different voltages.
Check the amps of your chosen battery charger. As a rule, the larger the amperage, the more quickly it will charge your batteries.
Think about how often you'll use your battery charger. If you'll be using it daily, it's worth spending more for a durable model. However, a basic model is fine if you're only likely to use it a few times a year.
Decide whether you need a universal battery charger. If you're buying a charger to charge one type of battery only – a lead acid car battery, for instance – choose a charger to suit that particularly battery. However, if you want to be able to recharge a wide range of batteries, opt for a universal model.
Consider whether you need an emergency starting mode. Some models have a special high-amp mode that enables you to jump-start your car battery in an emergency.
Q. Can I charge my batteries via USB?
A. While most battery chargers run from a power outlet, you can find some that are designed to charge batteries via a USB port. These chargers are generally for small household batteries because a USB port doesn't provide enough power to charge large batteries.
Q. Can I use my battery charger overseas?
A. Not all battery chargers can be used overseas, but some can. To be compatible for use in any country, your chosen charger will need to have an input voltage of 100V to 240V AC. Plus you'll need the relevant adaptor to allow you to plug it into the power outlets in the country you're visiting.
Q. Can I recharge non-rechargeable batteries in my battery charger?
A. While it might be tempting to try to get the most out of your standard alkaline household batteries, the clue's in the question – no, you can't recharge non-rechargeable batteries in a battery charger. These are designed for single use only. If you want to recharge small household batteries, you'll need to buy the rechargeable kind.