Kobalt 24V Battery System: The Complete Guide
Kobalt 24V batteries are designed to power a long line of Kobalt 24V cordless tools and are not compatible with Kobalt 40V and Kobalt 80V batteries and tools.
Most popular Kobalt 24V batteries range from 1.5Ah to 8.0Ah and are able to store from ~32 to ~172 Wh of energy. Also, they accept the charge relatively fast, and using a rapid 110W 24V charger, they can be recharged quickly.
Published: September 19, 2022.
Kobalt 24V MAX Battery Compatibility
Kobalt 24V MAX batteries are compatible with the Kobalt 24V MAX cordless tools and Kobalt 24V MAX lithium battery chargers.
They are not compatible with the Kobalt 40V batteries and tools, and they are not compatible with the Kobalt 80V batteries and tools.
Since the Kobalt 24V batteries are compatible with the Kobalt 24V cordless tools, having just a few of these allows users to operate a long list of tools, which can be ordered as "bare tools" or "tools-only" at a very acceptable price.
However, due to the differences in dimensions and especially weight, it is recommended to use smaller batteries to power handheld tools and larger batteries to power larger energy-hungry devices.
Batteries can be purchased with tools (tool, charger, and battery combo), as charger batteries kits, or as individual batteries. If You need a few more additional batteries, purchasing charger batteries kits can be a very cost-effective solution.
The most popular Kobalt 24V batteries are 2.0Ah and 4.0Ah models, but when looking for a new Kobalt (or any other) battery, be sure to choose according to your own needs and preferences.
Kobalt 24V 1.5Ah KB 124-03 MAX Battery and Kobalt 24V 2.0Ah KB 224-03 MAX Battery
Kobalt 24V 1.5Ah KB 124-03 MAX and Kobalt 24V 2.0Ah KB 224-03 MAX batteries are two smaller batteries intended for handheld devices that require lightweight batteries.
Physically, these two batteries are very similar, and since it stores ~33% more energy, Kobalt 24V 2.0Ah KB 224-03 MAX battery is much more popular - while KB 124-03 model is able to store ~32Wh of energy, KB 224-03 battery is able to store ~43Wh of energy.
Both batteries feature a battery charge indicator, allowing the users to check the remaining charge.
Just like other Kobalt 24V batteries, Kobalt 24V 1.5Ah and 2.0Ah batteries should be recharged only using Kobalt 24V compatible chargers.
When the 24V 2.0Ah battery is recharged using a 45W battery charger, it takes approximately 85 minutes to recharge it fully - the 24V 2.0Ah battery is even part of the 45W battery charger kit, but more on that later.
For the most up-to-date offers and prices, feel free to check the Kobalt 24V 2.0Ah KB 224-03 MAX Battery Amazon link (link opens in the new window).
Kobalt 24V 4.0Ah KB 424-03 MAX Battery and Kobalt 24V 5.0Ah KB 524-03 MAX Battery
Kobalt 24V 4.0Ah KB 424-03 MAX and Kobalt 24V 5.0Ah KB 524-03 MAX batteries are very popular Kobalt 24V batteries, especially the 4.0Ah model.
They can store ~84Wh and ~108Wh of energy, respectively, and they generally don't weigh too much not to be used on handheld devices (especially the 4.0Ah model), and yet they store enough energy to be power energy-hungry tools and devices.
Both batteries feature a battery charge indicator, allowing the users to check the remaining charge.
When the 24V 4.0Ah battery is recharged using a 45W battery charger, it takes approximately 165 minutes to recharge it fully - charging the lithium battery for almost 3 hours is anything but fast, so a faster/stronger 110W battery charger is recommended.
The Kobalt 24V 4.0Ah battery is can be purchased as an individual battery, as pair of batteries, or as part of battery charger kits (both 45W and 110W).
For the most up-to-date offers and prices, feel free to check the Kobalt 24V 5.0Ah KB 524-03 MAX Batteries Amazon link (the link opens in the new window).
Kobalt 24V 6.0Ah KB 624-03 MAX Battery and Kobalt 24V 8.0Ah KB 824-03 MAX Battery
Kobalt 24V 6.0Ah KB 624-03 MAX and Kobalt 24V 8.0Ah KB 824-03 MAX batteries are used for powering energy-hungry tools and devices since they are able to store ~130 and 173 Wh of energy, respectively.
Both batteries can be recharged using 45W and 110W battery chargers, but due to the charging times, a 110W battery charger is recommended.
For example, Kobalt 24V 6.0Ah KB 624-03 battery's charging time is:
- Kobalt KRC 2445-03 24V Lithium Battery Charger (45W): 4.15h
- Kobalt KRC 2490-03 24V Lithium Battery Charger (110W): 1.65h
Both batteries feature a battery charge indicator, allowing the users to check the remaining charge.
Kobalt 24V 6.0Ah and 8.0Ah batteries are generally good batteries used for high-power devices. However, if You are looking for a new battery system for cordless lawn mowers and similar cordless tools, consider Kobalt 40V and Kobalt 80V battery systems - due to higher voltage, Kobalt 40V, and Kobalt 80V tools, lawn mowers included, feature better performances, needed for more difficult tasks.
For the most up-to-date offers and prices, feel free to check the Kobalt 24V 6.0Ah KB 624-03 MAX Battery Amazon link (the link opens in the new window).
Kobalt 24V MAX Chargers and Charge Kits
Kobalt offers several 24V MAX chargers and charger kits, allowing their users to easily obtain batteries and chargers needed for their 24V MAX line of cordless tools.
The most popular chargers and charger kits are:
Kobalt KRC 2445-03 Lithium-Ion Battery Charger
Kobalt KRC 2445-03 Lithium-Ion Battery Charger is a 45W battery charger that is offered as a charger, as part of charger/batteries kits, or with the tool/charger/battery kits.
Kobalt KRC 2445-03 charger is a single-port battery charger with the charging time limited by the capacity of the charging battery:
- Kobalt 24V 2.0Ah KB 224-03 MAX Battery: ~85 minutes,
- Kobalt 24V 4.0Ah KB 424-03 MAX Battery: ~165 minutes,
- Kobalt 24V 6.0Ah KB 624-03 MAX Battery: ~250 minutes.
Personally, charging time for 1.5Ah and 2.0Ah batteries is acceptable, but for 4.0Ah and larger batteries, the charging time is simply too long.
Kobalt KRC 2445-03 charger can be purchased as a charger-only package but also as a charger kit with Kobalt 24V 2.0Ah and Kobalt 4.0Ah batteries - a great kit for powering smaller and lighter handheld Kobalt 24V MAX tools.
For the most up-to-date offers and prices, feel free to check the Kobalt KRC 2445-03 Lithium-Ion Battery Charger Kit Amazon link (the link opens in the new window).
Kobalt KRC 2490-03 Lithium-Ion Battery Charger
Kobalt KRC 2490-03 Lithium-Ion Battery Charger is a single-port, 110W fast lithium-ion battery charger better suited for medium and large Kobalt 24V batteries than the Kobalt 24V 45W battery charger.
Thanks to stronger output power, a 110W battery charger is able to recharge, for example, Kobalt 24V 6.0Ah battery in 100 minutes, while a 45W battery charger takes ~250 minutes to do the same task.
If You have a few 4.0+ batteries that You swap among several Kobalt 24V MAX tools, the Kobalt KRC 2490-03 battery charger is the recommended one, despite having only one charging port.
Kobalt KRC 2490-03 battery charger is also offered as part of the charger/battery kit, combined with two Kobalt 24V 4.0Ah KB 424-03 batteries.
For the most up-to-date offers and prices, feel free to check the Kobalt KRC 2490-03 Lithium-Ion Battery Charger Kit Amazon link (the link opens in the new window).
Both Kobalt KRC 2445-03 and Kobalt KRC 2490-03 battery chargers are good chargers, but they feature only one charging port - for people having the need to charge several Kobalt 24V MAX batteries, having plenty of single port chargers is not acceptable. At least, not right away.
Hence, Kobalt offers a 24V battery charger with four charging ports.
Kobalt 24 Volt MAX Lithium Ion 4-Port Battery Charger
Kobalt 24 Volt MAX Lithium Ion 4-Port Battery Charger accepts four Kobalt 24V batteries at once and features a battery cooling system, preventing batteries from overheating.
But, it recharges only one battery at a time, based on the order in which the batteries were placed on the charger.
This "one battery at a time" is rather limited detail and is a reason why many owners of the Kobalt 24V MAX tools prefer using several 110W battery chargers in parallel - they all charge all the batteries at once.
Personally, having four Kobalt 24V KRC 2490-03 MAX battery chargers means having larger clutter on the workbench, but it also means charging four batteries simultaneously.
For the most up-to-date offers and prices, feel free to check the Kobalt 24 Volt MAX Lithium Ion 4-Port Battery Charger Amazon link (the link opens in the new window).
Long Story Short: Kobalt 24V MAX batteries offer great power outputs needed for smaller and medium handheld and similar cordless tools - Kobalt offers a long list of such 24V cordless tools, which are rather popular on the market.
However, larger cordless tools and appliances, such as lawn mowers, lack power when compared to Kobalt 40V and Kobalt 80V lawn mowers and other similar tools.
Also, the Kobalt 24V MAX battery system lacks a multi-port battery charger that would charge several batteries simultaneously, not just one by one.
