Battery Chargers and Tenders for BMW E46 M3 S54 (1999-2005)

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Any time you store your BMW for long periods, tune the software with a performance engine management system or are working on your car for an extended length of time, a battery tender is recommended. Battery tenders, jumper cables, battery chargers, and service tools are all listed on this page to keep your battery charged and your BMW starting every time.
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Schwaben European Car Electrical Terminal Tool Kit - 12 Pieces ...
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Schwaben - Corporate Logo
T#:386379
Part#: CE-70-2
In Stock
Sale - Save 20% $ 129.99

This product was last offered at the strikethrough price on
05-02-2026

$ 103.99 USD
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Sale - Save 20%
$ 129.99

This product was last offered at the strikethrough price on
05-02-2026

$ 103.99 USD
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This tool comes in handy especially when working with an engine harness. Certain areas are always prone to corrosion and this tool makes having to re-pin a connector a breeze.

Unlike small screwdrivers, picks, and paper clips, these tools are the correct size and shape to remove and install tiny electrical pins and terminals at plastic block connectors with ease, and will not damage the connectors in the process.

Packaged in a blow molded case to keep everything secure and organized.

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Genuine BMW Battery Charger
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Genuine BMW - Corporate Logo
T#:363413
Part#: 61432408594
In Stock
$ 230.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 189.99 USD
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$ 189.99 USD
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When your car sits for a long period of time, your BMW's battery will gradually discharge. This battery charger will keep your BMW's battery fully charged and ready for your next driving adventure.
CTEK Automatic Battery Charger and Maintainer - MXS 5.0 4.3 Amp 12V ...
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CTEK - Corporate Logo
T#:6460297
Part#: CTEK40-206
In Stock
$ 113.99 USD
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$ 113.99 USD
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Fully automatic microprocessor controlled charger with built-in automatic temperature sensor

THINKEASY Battery Tester
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THINKCAR - Corporate Logo
T#:24444449
Part#: 3.03.04.0001
Ships in 1 Business Day
$ 59.99 USD
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$ 59.99 USD
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The THINKEASY V2 Battery Tester is an advanced device designed for effortless and efficient diagnosis and monitoring of your car's battery condition. It incorporates the latest Bluetooth 5.0 technology, ensuring accelerated and reliable data transfer, along with a significant reduction in power consumption compared to other automotive battery testers. This versatile tester is compatible with a range of battery types, including regularly flooded, AGM flat plate, AGM Spiral, EFB, and gel batteries.


Powerful Capability:

  • Capable of testing 12V batteries with ratings from 100-2000 CCA.
  • Includes starter and alternator testing.

Versatile Battery Testing:

  • Compatible with multiple battery types, such as flooded, AGM flat plate, AGM spiral, and gel.
  • Test standards include CCA, BCI, CA, MCA, JIS, DIN, IEC, EN, SAE.

Convenient In-Vehicle and Out-of-Vehicle Testing:

  • Test batteries without having to remove them from the vehicle.

Complete Battery Analysis:

  • Performs Battery Health Test, Start System Test, Charging Health Test.
  • Provides a comprehensive test record.

Detailed Test Results:

  • Displays SOH, SOC, CCA Value, CCA rating, voltage, internal resistance, and more.

Quick and Accurate Results:

  • Provides reliable results in seconds with up to 99.9% accuracy.
  • Offers suggestions (Good, Recharge, Replace).
  • Polarity reverses connection protection.

Multilingual Support:

  •  Available in 7 languages: English, Spanish, German, Russian, Italian, French, and Portuguese.

Wide Applicability:

  • Suitable for use in automobile factories, garages, auto battery manufacturing, and by DIY enthusiasts, etc.
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Schwaben Automatic Battery Tender
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Schwaben - Corporate Logo
T#:378277
Part#: 005979SCH01A
In Stock
Sale - Save 25% $ 100.99

This product was last offered at the strikethrough price on
05-02-2026

$ 75.74 USD
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Sale - Save 25%
$ 100.99

This product was last offered at the strikethrough price on
05-02-2026

$ 75.74 USD
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This Schwaben Battery Charger is designed to work on 6 or 12 volt Lead-acid batteries only, includes WET, MF,AGM and GEL types. Do not use on dry cell batteries commonly used in appliances. Charger features, Charging voltage auto select. Selectable Charging current,8 LED indicators, No risk of overcharging, overheating protection, Short circuit protection.
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5.0 Amp 12 Volt Lithium US Battery Charger - CTEK
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CTEK - Corporate Logo
T#:29201100
Part#: 56-92656-926
In Stock at Vendor
$ 137.99 USD
Free Shipping on orders $49 and up
  • The LITHIUM US is a cutting-edge, microprocessor-controlled charger specifically designed for recharging and maintaining Lithium-Iron (LiFePO4) batteries, guaranteeing peak performance and longevity. With a charging current of up to 4.3A, it is highly versatile, capable of charging LiFePO4 batteries from 5Ah to 60Ah and maintaining up to 120Ah.

    Operation is simple—charging starts automatically upon connection, without needing to disconnect the battery from the vehicle. The LITHIUM US will reset any low voltage protection electronics (Battery Management System) at the beginning of the charge. Charging can be manually restarted anytime using the 'Reset' button.

    The CTEK LITHIUM US is a fully automatic, 'connect and forget' charger with 8 charging steps, including a testing sequence to determine if the LiFePO4 battery can accept and hold the charge, a unique maximization step to restore full capacity, and patented maintenance charging to ensure optimal performance even after long periods of inactivity. Splash-proof and dustproof (IP65), the LITHIUM US is safe and easy to use, protecting vehicle electronics with spark-free, reverse polarity protected, and short-circuit proof features. It also comes with a 5-year warranty from CTEK and a LIFETIME REPLACEMENT guarantee from us!


    Features:

    • Comprehensive LiFePO4 Battery Care: Innovative and patented system designed to recover, charge, and maintain LiFePO4 batteries, enhancing performance and prolonging lifespan.
    • Safety First: Spark-free operation and reverse polarity protection ensure user safety; delivers exceptionally clean voltage and current without surges or spikes, protecting vehicle electronics. Charging can be done without disconnecting the battery from the vehicle.
    • Plug and Play: Easy to use with simple plug-and-play functionality, and includes a manual reset option.
    • Advanced 8-Step Charging: The patented 8-step process tests battery condition, charges, and maintains to ensure optimal LiFePO4 battery life and performance. Float/pulse maintenance provides ideal care during inactivity.
    • Prolongs Battery Lifespan: The distinctive features of CTEK chargers work together to maximize performance and extend the lifespan of LiFePO4 batteries.
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    HD Precision Boost Battery Clamps - NOCO
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    NOCO - Corporate Logo
    T#:641115
    Part#: GBC003
    In Stock
    Sale - Save 3% $ 24.99

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 24.26 USD
    Free Shipping on orders $49 and up
    Sale - Save 3%
    $ 24.99

    This product was last offered at the strikethrough price on
    05-03-2026

    $ 24.26 USD
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    The NOCO GBC003 Boost HD Precision Battery Clamps are heavy-duty clamps crafted for use with 12-volt gas and diesel engines. These clamps feature a needle-nose profile, allowing them to fit any shape or size battery terminal, from small terminals in tight spaces to top and side post batteries, as well as large terminal sizes. Their robust and rugged springs ensure maximum current flow with minimal power loss. Additionally, the Boost HD Precision accessory boasts no-melt and smoke-free properties, high current transferability, and reinforced all-metal construction.


    Features: 

    • Heavy-duty battery clamp designed for both 12-volt gas and diesel engines.
    • Needle-nose clamp profile for jump starting hard-to-reach and oversized battery terminals.
    • Made from durable, heat stabilized 8 AWG silicone wire that maintains its flexibility in cold weather environments.
    • Engineered to efficiently transfer maximum current flow with minimal power loss.
    • Compatible with the GB20, GB40, GB50, and GBX45 UltraSafe Lithium Jump Starters.


    WARNING: This product contains chemicals known to the state of California to cause cancer, birth defects, and/or reproductive harm. See above warning label as well as http://www.p65warnings.ca.gov for further information on Proposition 65 warnings.

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    GENIUS 6 Volt / 12 Volt 5A Battery Charger - NOCO
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    NOCO - Corporate Logo
    T#:641140
    Part#: GENIUS5
    Ships in 8 Business Days
    22% off MSRP $ 89.99

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 69.99 USD
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    22% off MSRP
    $ 89.99

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 69.99 USD
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    The GENIUS5 is an exceptional addition to our lineup boasting incredible power, top-notch performance, energy efficiency, and a compact design. The GENIUS5 is a versatile 6-volt and 12-volt charger, maintainer, and desulfator with a 5-amp rating. It's engineered for use with lead-acid batteries in automotive, marine, and deep-cycle applications, covering flooded, gel, AGM, maintenance-free variants, and even lithium-ion batteries.


    Features:

    • Do more with Genius - Designed for 6-volt and 12-volt lead-acid automotive, marine, and deep-cycle batteries, including flooded, gel, AGM, and maintenance-free, plus lithium-ion batteries.
    • Enjoy precision charging - An integrated thermal sensor detects the ambient temperature and alters the charge to eliminate over-charging in hot climates and under-charging in cold climates.
    • Charge dead batteries - Charges dead batteries as low as 1-volt. Or use the all-new Force Mode that allows you to take control and manually begin charging dead batteries down to zero volts.
    • Simple to set up and use - Plug-in, connect to the battery, select a charge mode, and start charging your battery. A fully-automatic, worry-free battery charger for year-round use.
    • Restore your battery - Detects sulfation and acid stratification and restores lost performance for stronger engine starts and extended battery life.
    • Compatible with all types of vehicles - Charge and maintain cars, motorcycles, lawnmowers, ATVs, tractors, trucks, SUVs, boats, classic cars, hot rods, and more - you name it.


    WARNING: This product contains chemicals known to the state of California to cause cancer, birth defects, and/or reproductive harm. See above warning label as well as http://www.p65warnings.ca.gov for further information on Proposition 65 warnings.

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    Boost Plus UltraSafe Lithium 1000A Jump Starter - NOCO
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    NOCO - Corporate Logo
    T#:641108
    Part#: GB40
    In Stock
    20% off MSRP $ 124.99

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 99.99 USD
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    20% off MSRP
    $ 124.99

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 99.99 USD
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    The GB40 is a compact lithium-ion battery jump starter pack capable of delivering 1,000 amps, allowing you to jump-start a dead battery within seconds. Equipped with patented safety technology, it ensures spark-proof connections and reverse polarity protection, making it user-friendly and safe for everyone. Not only does it serve as a powerful battery booster, but it also functions as a portable power source for charging USB devices such as smartphones and tablets. Designed to support vehicles like cars, boats, RVs, trucks, and more, it can handle gas engines up to 6 liters and diesel engines up to 3 liters.



    Features:

    • Compact, yet powerful lithium jump starter rated at 1,000 Amps - up to 20 jump starts on a single charge.
    • An ultra-safe and mistake-proof design with spark-proof technology and reverse polarity protection, which allow it to safely connect to any battery.
    • An ultra-bright 100 lumen LED flashlight with 7 light modes, including SOS and emergency strobe.
    • Recharge your personal devices on the go, like smartphones, tablets, e-watches and more - up to 4 smartphone recharges.
    • Designed for gas engines up to 6 Liters and diesel engines up to 3 Liters for cars, boats, lawn mowers and more.


    WARNING: This product contains chemicals known to the state of California to cause cancer, birth defects, and/or reproductive harm. See above warning label as well as http://www.p65warnings.ca.gov for further information on Proposition 65 warnings.

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    Battery Comfort Indicator
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    Genuine BMW - Corporate Logo
    T#:570422
    Part#: 61432289103
    In Stock
    Sale - Save 8% $ 23.99

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 22.04 USD
    Free Shipping on orders $49 and up
    Sale - Save 8%
    $ 23.99

    This product was last offered at the strikethrough price on
    06-25-2026

    $ 22.04 USD
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    CTEK PRO25SE
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    CTEK - Corporate Logo
    T#:6476041
    Part#: 40-327
    In Stock at Vendor
    $ 604.99 USD
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    $ 604.99 USD
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    The PRO25SE is an innovative, versatile, and highly efficient 25A battery charger and power supply.
    GENIUS 6 Volt / 12 Volt 10A Battery Charger - NOCO
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    NOCO - Corporate Logo
    T#:641137
    Part#: GENIUS10
    Ships in 8 Business Days
    20% off MSRP $ 124.95

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 99.94 USD
    Free Shipping
    20% off MSRP
    $ 124.95

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 99.94 USD
    Free Shipping

    The GENIUS10 is a powerhouse among our chargers known for its exceptional performance, energy efficiency, and compact design. The GENIUS10 is a versatile 6-volt and 12-volt charger, maintainer, and desulfator with a robust 10-amp rating. It's engineered to handle lead-acid batteries used in automotive, marine, and deep-cycle applications, covering flooded, gel, AGM, maintenance-free types, as well as lithium-ion batteries.


    Features:

    • Do more with Genius - Designed for 6-volt and 12-volt lead-acid automotive, marine, and deep-cycle batteries, including flooded, gel, AGM, and maintenance-free, plus lithium-ion batteries.
    • Enjoy precision charging - An integrated thermal sensor detects the ambient temperature and alters the charge to eliminate over-charging in hot climates and under-charging in cold climates.
    • Charge dead batteries - Charges dead batteries as low as 1-volt. Or use the all-new Force Mode that allows you to take control and manually begin charging dead batteries down to zero volts.
    • Simple to set up and use - Plug-in, connect to the battery, select a charge mode, and start charging your battery. A fully-automatic, worry-free battery charger for year-round use.
    • Restore your battery - Detects sulfation and acid stratification and restores lost performance for stronger engine starts and extended battery life.
    • Compatible with all types of vehicles - Charge and maintain cars, motorcycles, lawnmowers, ATVs, tractors, trucks, SUVs, boats, classic cars, hot rods, and more - you name it.


    WARNING: This product contains chemicals known to the state of California to cause cancer, birth defects, and/or reproductive harm. See above warning label as well as http://www.p65warnings.ca.gov for further information on Proposition 65 warnings.

    Show More Show Less