Limitless Lithium Battery Chargers & Maintainers

Limitless Lithium Battery Chargers & Maintainers

Sold by AudioSellerz.com

Shop Limitless Lithium battery chargers and battery maintainers for LiFePO4, sodium-ion, LTO, CMAX, motorcycle, powersports, and high-performance car audio battery systems at AudioSellerz.com. The current Limitless charging lineup includes 25-amp CC/CV chargers and power supplies along with compact 3.5-amp battery maintainers for both stock-voltage and higher-voltage battery applications.

Choosing the correct charger is just as important as choosing the battery. Different battery chemistries and electrical systems can require different charging voltages, and a charger that is appropriate for one Limitless battery should not automatically be assumed to be correct for another.

You can also shop all Limitless Lithium products at AudioSellerz or browse our complete battery chargers and car audio power supplies.

Limitless Lithium Chargers and Battery Maintainers

The current Limitless Lithium charging lineup gives customers two basic types of equipment:

• 25A battery chargers and power supplies for actively charging compatible batteries
• 3.5A battery maintainers for keeping compatible batteries maintained while vehicles or systems are stored

The current products include:

• Limitless Lithium 25A 12V2 Charger / Power Supply with LED Screen
• Limitless Lithium 25A 15.5V Charger / Power Supply with LED Screen
• Limitless Lithium Stock Voltage 3.5A Battery Maintainer V2
• Limitless Lithium High Voltage 3.5A Battery Maintainer

The correct one depends on the battery chemistry, required charging voltage, system design, and whether you need to actively recharge a battery or simply maintain it during storage.

Limitless Lithium 25A 12V2 Charger / Power Supply

The Limitless Lithium 25A 12V2 Charger / Power Supply is a 25-amp CC/CV charger designed for compatible Limitless Lithium batteries.

The built-in LED screen displays:

• Charging voltage
• Charging amperage output

Limitless currently recommends the 12V2 charger for compatible:

• Nano Series batteries
• Retro Pro batteries
• NoLi sodium batteries

Always verify the specifications of the exact battery being charged before connecting the charger. Battery family, chemistry, and charging requirements matter more than simply seeing the words "12 volt" on the product.

Limitless Lithium 25A 15.5V Charger / Power Supply

The Limitless Lithium 25A 15.5V Charger / Power Supply is the higher-voltage 25-amp CC/CV charging option in the current Limitless lineup.

Like the 12V2 model, it includes an LED screen displaying charging voltage and amperage output.

Limitless currently recommends the 15.5V charger for compatible:

• NoLi sodium batteries
• LTO battery systems
• CMAX battery systems

Do not choose the 15.5V charger simply because a higher voltage sounds better. Charging voltage must match the battery and electrical system being charged.

A battery's maximum charging voltage is not necessarily the voltage that should be used for every charge or every installation. Follow the requirements for the specific battery and complete electrical system.

12V2 vs 15.5V Limitless Lithium Charger

The biggest difference between the two current 25A Limitless chargers is the charging-voltage application they are designed around.

Choose the 12V2 Charger When

The battery manufacturer specifies the stock-voltage charging profile and the battery is compatible with the 12V2 charger. Limitless specifically recommends this charger for compatible Nano, Retro Pro, and NoLi batteries.

Choose the 15.5V Charger When

The battery system is designed around the higher-voltage charging profile and is specifically compatible with the 15.5V unit. Limitless lists this charger for compatible NoLi, LTO, and CMAX systems.

If you are unsure which charger the battery requires, verify the battery specifications before ordering. Do not make the decision solely from battery chemistry because products within the same broad chemistry family can still have different voltage requirements.

What Is a CC/CV Battery Charger?

CC/CV stands for constant current / constant voltage. This charging method controls current and voltage during different parts of the charging process.

Limitless identifies its current 25A charger and power-supply models as CC/CV chargers designed specifically around compatible Limitless battery applications.

Using charging equipment intended for the battery is especially important with modern electrical systems because lithium, LiFePO4, sodium-ion, LTO, and other battery technologies do not all share identical charging requirements.

Limitless Lithium Stock Voltage 3.5A Battery Maintainer V2

The Limitless Lithium Stock Voltage 3.5A Battery Maintainer V2 is intended for compatible stock-voltage applications.

Limitless identifies this model for compatible LiFePO4 and sodium battery applications.

The maintainer is designed to:

• Provide up to 3.5 amps of maintenance charging
• Shut completely off when the battery reaches its charged state
• Reduce output to 0.0 amps when charging is complete
• Restart if battery voltage falls because of electrical draw

Limitless currently states that the V2 stock-voltage maintainer turns back on when the battery is pulled down to approximately 13.0 volts because of a current draw.

This makes a maintainer useful for vehicles that may sit for extended periods while still having small electrical loads from electronics, security systems, memory circuits, or other equipment.

Limitless Lithium High Voltage 3.5A Battery Maintainer

The Limitless Lithium High Voltage 3.5A Battery Maintainer is the maintenance option for compatible higher-voltage battery systems.

Limitless currently lists the high-voltage maintainer for compatible:

• Sodium battery systems
• LTO battery systems
• CMAX systems
• Other compatible higher-voltage battery applications specified by the manufacturer

Like the stock-voltage maintainer, it is designed to shut its charging output down when the battery is charged and resume operation when a current draw pulls the battery down.

The stock-voltage and high-voltage maintainers are not interchangeable simply because they are both rated at 3.5 amps. Voltage compatibility still has to match the battery.

Battery Charger vs Battery Maintainer

A charger and a maintainer perform related jobs, but they are not exactly the same tool.

25A Battery Charger

A 25-amp charger provides substantially more charging current and is useful when a compatible battery needs to be actively recharged.

This can make sense after:

• Playing a high-power audio system with the vehicle off
• Extended demo sessions
• Battery testing
• Electrical-system service
• Heavy battery discharge
• Vehicle storage followed by a low state of charge

3.5A Battery Maintainer

A 3.5-amp maintainer is better suited to keeping a compatible battery maintained over time rather than quickly replenishing a deeply discharged high-capacity battery.

A maintainer can be useful for:

• Show cars
• Demo vehicles
• Motorcycles
• Powersports vehicles
• Seasonal vehicles
• Competition vehicles
• Cars that sit for extended periods

Battery Charging for High-Power Car Audio

A high-output car audio system can remove a significant amount of energy from the battery, especially during extended listening or demos.

Even with a high-output alternator, there are situations where externally charging the battery can be useful.

This is particularly true for:

• Demo vehicles
• Competition systems
• Large multi-amplifier systems
• Vehicles played heavily with the engine off
• Show vehicles that spend long periods parked

An external charger does not replace a properly designed vehicle charging system. The alternator, regulator, battery, wire, grounds, fuse protection, and amplifier demand still need to work together while the vehicle is operating.

Charging Sodium-Ion Car Audio Batteries

Sodium-ion batteries can operate differently from conventional AGM batteries and should be charged according to the requirements of the specific battery.

The Limitless NoLi lineup is one example where different charging equipment may be appropriate depending on how the battery and electrical system are configured.

Before charging a sodium battery, verify:

• Battery charging-voltage range
• Maximum charging voltage
• Recommended charging profile
• Charger output voltage
• Charger amperage
• Vehicle charging voltage
• Electrical-system configuration

For more information, read the AudioSellerz sodium-ion and LTO car audio charging voltage guide.

Charging LiFePO4 Batteries

The Limitless Nano, Retro Pro, and Shake Awake families use LiFePO4 battery technology in their applicable models.

A LiFePO4 battery should be charged using equipment and voltage settings compatible with that specific battery.

Do not assume an old lead-acid battery charger, AGM charger, or generic battery tender is appropriate simply because the battery is used in a nominal 12-volt electrical system.

If you are still planning the battery side of the system, browse our lithium battery collection and read our lithium battery upgrade guide.

Charging LTO Battery Systems

LTO battery systems are often used in demanding high-current applications, but their charging setup has to be matched correctly to the battery configuration.

The number of cells, battery design, balancing method, charging-voltage target, alternator behavior, and external charging equipment all matter.

Do not choose an LTO charger solely because the charger says "high voltage." Verify the specific pack's requirements first.

Can I Use a Higher-Voltage Charger for More Power?

No. A higher charger voltage should not be used simply to try to make the audio system more powerful.

Charging voltage must stay within the safe operating requirements of the battery and electrical system.

Excessive charging voltage can stress or damage:

• Batteries
• Amplifiers
• Vehicle electronics
• Lighting
• Control modules
• Accessories

The correct voltage is the voltage the system is designed to use—not the highest number the charger can produce.

Choosing the Right Limitless Lithium Charger

Before buying a Limitless Lithium charger or maintainer, identify the exact battery being used.

Then verify:

• Battery chemistry
• Battery model
• Required charging voltage
• Maximum charging voltage
• Recommended charge current
• Whether you need charging or long-term maintenance
• Whether the system uses stock or elevated voltage

If you are unsure, contact AudioSellerz with the exact battery model and electrical-system setup before connecting charging equipment.

Why Buy Limitless Lithium Chargers From AudioSellerz?

Audio Sellerz works with real high-power car audio systems, lithium batteries, sodium batteries, alternators, wiring, amplifiers, fuse protection, and charging-system upgrades.

We understand that electrical-system performance involves more than simply purchasing a battery. Correct charging and system maintenance are part of keeping the entire build operating properly.

When you shop Limitless Lithium through AudioSellerz, you can also find the batteries, wiring, electrical components, amplifiers, and other equipment needed to complete the system.

Browse the complete Limitless Lithium collection at AudioSellerz to compare chargers and maintainers with Nano, NoLi, Retro Pro, Shake Awake, and other Limitless electrical products.

Shop Limitless Lithium Battery Chargers & Maintainers

Whether you need a 25A Limitless Lithium battery charger for active charging or a 3.5A Limitless battery maintainer for a stored vehicle, choose the charging equipment that matches the battery chemistry and required voltage.

Compare the available stock-voltage and high-voltage options above and verify compatibility with your exact battery before connecting the charger.

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Helpful Audio Sellerz Links

Shop Limitless Lithium
Shop Battery Chargers & Car Audio Power Supplies
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Read the Sodium-Ion & LTO Charging Voltage Guide
Read the Lithium Battery Upgrade Guide