The 8 Best 12 Slot Battery Chargers (2023 reviews)

Powerowl 12 slot battery charger is the epitome of what a great charger should be. This charger is a game-changer and makes a tedious job so much easier. It can charge the full set of batteries at once and not get hot. The best features are that it keeps the batteries cool. It works well and helps disposing of regular batteries. The indicator light will come on and let you know that the battery is charging. It will charge aa and aaa over night (2800 miliamp) and the spacing allows them to breath.

It is easy to use and useful isn't good enough, it also looks pretty groovy in the dark.

Why We Like This:

Easy to use works very good holds the charge good
Batteries are easy to put in/take out
Good charger for lots of batteries

Best For Rechargeable Battery: Edisonbright 12 Slot Battery Charger

Buy on Amazon

The edisonbright 12 slot battery charger is capable of outshining several other charger featured in this list in overall features for the price point. These chargers work really well recharging the different sizes of rechargeable batteries. It will charge batteries that are close to or are dead. It does a good job of letting you know just where you're batteries are at during the charging process.

Charges several different levels and brands of batteries at once, and turns off when the charge cycle is comlete. The lights that indicate how much progress the batteries are making is a nice touch. It is necessary to place them in so that the spring holds them suspended in air above the charger. The springs are a bit tight so it's hard to get the battery in.

Why We Like This:

Good charger and very useful for all home recharge chores
Charges different sizes at the same time
Good product for all sizes of batteries

Best For Charging odd numbers Of NIMH Cells: POWXS 12 Slot Battery Charger

Buy on Amazon

Next on the list, we've got yet another charger that manages to win our hearts. It's the powxs 12 slot battery charger and it's widely considered as charger that has the most suitable features. This charger supports independently charging and monitoring twelve NiMH cells (AA or AAA size) at a time. It will charge any rechargeable battery, AA, AAA, or Nine vault. It works great to show where the charge is at on the charger. There is a tiny led (1mm) beside the 9v, in the charging tray, which shows red or green. It will switch off automatically if you charge broken or inapplicable batteries, which is more intelligent and safety.

This product is inexpensive and works well with no problems. It will charge both AA and AAA batteries. It is perfect for your family charging needs.

Why We Like This:

Has working indicators for each battery
Rechargeable batteries only a few hours depending batteries
High-quality, well made, durable & exellent

Best With USB port: EBL 12 Slot Battery Charger

Buy on Amazon

The ebl 12 slot battery charger is specially designed for your daily usage and has all useful features. It works great with the Amazon Basics rechargeable batteries. It has a digital display for each battery placement to track charging. Using the 2.1-amp power supply, they work flawlessly. It charges each battery separately, allowing a deeper charge to each, rather than leveling out two or more. It has batteries in it fully charged. The Charger works well and charges fast. It has a USB-C port, so it does support that standard. It is great for a household that has multiple devices running on rechargables.

Why We Like This:

Really solid charger for people with lots of batteries
Charges a multitude of battery sizes and chemistries
Charge 8 double aa batteries at once

Best With LCD Display: CITYORK 12 Slot Battery Charger

Buy on Amazon

We know from years of feedback from readers, customers and amazon sellers, what most people want in a convenient and appropriate charger. The cityork 12 slot battery charger is exactly that - it's a simple charger that hits all the right notes. This 16 bay charger can not charge a low capacity battery, the capacity must be higher than 600mah. It does them in about a half hour to an hour depending on the battery. It is easy to use with cycling function, discharge and fully charge your cells to extend their life and overall performance, especially deep cleaning of nicd rechargeable batteries, useful and good for the environment instead to use disposable batteries.

It has 16 slots, a display that tells you how charged each battery is and is light and compact. It does revitalize any battery. It shows the current charge level of the battery, not the capacity of the cell. It makes noise when charging batteries.

Why We Like This:

Takes very long time to charge so do it overnight
Fast replacement and it works great, no issues
Charge a lot of batteries quickly
Lcd readout is intuitive and a nice feature

Best For heavy energy User: Bonai 12 Slot Battery Charger

Buy on Amazon

The bonai 12 slot battery charger might be a relatively new release, but it's still nothing short of impressive this year. It is so nice to be able to charge so many batteries all at the same time. This thing has room for 16 batteries and works like a charm. It is charging 4 times as many batteries. The LED indicators are also very useful and accurate. The AC versions are pricy but they work quicker and with the 16 bays offer the opportunity to charge all your batteries quickly. It is great charger for a heavy energy user. The light turns solid green when charging is complete. It is easy to store and charges batteries quickly.

Why We Like This:

Great aaa and aa battery charger
Charges a whole lot of batteries and tops them up
Great quality charger and super convenient

Best For electronic: Tenergy 12 Slot Battery Charger

Buy on Amazon

If you often find yourself scrambling for convenient and suitable charger, tenergy 12 slot battery charger is your end point. It is a great charger for those who have a lot of aa and/or aaa batteries. It works well and can charge batteries from both auto and home power sources. Each will charge at their own speed and it has an overcharge protector to keep your batteries from being damaged over time, ballooning, all that bad stuff that you don't want batteries to do. It will safely discharge batteries and when all are discharged the recharge cycle starts automatically.

The charging display and auto shut off (each separate battery bay) makes this a no brainer. It comes with a built-in smart technology that provides full protection against overcharging, overheating, and reverse-polarity. The ability to charge 32 batteries at once is very convenient.

Why We Like This:

Batteries charge quickly and display shows charging status of each battery
You can start a battery at any time independently from all the other batteries
Lies flat on table, with non-skid pads

Best With button Top: Tenberly 12 Slot Battery Charger

Buy on Amazon

This 24 bay charger is designed to work with button top rechargeable batteries, does not work with flat top batteries. The Battery charger for aaa and aa rechargeable batteries, with a LCD display, intelligently shows the charging status of each chargeable battery. It comes with discharge function, charge and discharge freely. The 24 bay battery charger only applies to the 1.2V AA AAA Ni-MH/NI-CD battery.

This battery charger for aaa and aa rechargeable batteries, charges 1 to 24 AA or AAA batteries at the same time. It is very helpful for nicd batteries.

Why We Like This:

Auto detection of non-rechargeable battery or defective battery
Short circuit detection and over temperature detection
Independent charging channel for each battery