How to test the open-circuit voltage and perform a load voltage test on the batteries of a BMW 335i?

Before testing, load battery with 15 amperes for one minute with battery load-tester or switch headlights ON for about one minute without engine running. Connect digital voltmeter across battery terminals. Open-circuit voltage levels are given in Table c. If open-circuit voltage is OK but battery still lacks power for starting, perform a load voltage test. If open-circuit voltage is below 12.4 volts, recharge battery and retest. Battery charging notes are in this repair group.

What steps should be followed regarding the batteries when they are disconnected or accidentally discharged and then reconnected on BMW 335i?

Other than the Warnings and Cautions contained in this repair group and in 001 Warnings and Cautions, there are some things to do when a battery is disconnected or accidentally discharged then reconnected. The clock has to be reset, radio presets must be entered and the steering angle sensor should be calibrated using a BMW scan tool or equivalent. For power window regulator motors, there is an appropriate initialization process that must be followed which entails closing and opening the window completely several times while pressing down on the switch. It is important also to check one-touch control, anti-trapping, and comfort functions where applicable. When initializing sunroof it might require you to hold up the switch for some time. In order to calibrate compass in interior mirror you have to press push button until letter C appears on compass display, then drive vehicle at certain speed in a circle. Calibration is done when direction display comes on.

What are the functions of a batteries load tester and how should it be conducted for accurate results on BMW 335i?

To load voltage test, one needs a battery load tester. To do this, connect a high-resistance load across the battery terminals and measure its voltage simultaneously. Ensure that your battery is completely charged for more accurate findings. Before testing it, unplug cables attached to the battery. Change your battery when its voltage goes below that given in Table d.

Genuine BMW 335i Batteries

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17 Batteries found

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BMW 335i Original Bmw Agm-Battery
Part Number: 61217555719
$254.46 MSRP: $319.91
You Save: $65.45 (21%)
Product Specifications
- Other Name: Battery
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2012-2015 BMW 335i | Sedan(F30)
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BMW 335i Battery
Part Number: 84102447710
$88.86 MSRP: $119.63
You Save: $30.77 (26%)
Product Specifications
- Other Name: Accumulator
- Replaces: 84-10-9-361-678
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2012-2015 BMW 335i | Sedan(F30)
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BMW 335i Ep Battery 70Ah
Part Number: 61212353806
$108.08 MSRP: $145.00
You Save: $36.92 (26%)
Product Specifications
- Replaced by: 61212353817
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2007-2011 BMW 335i | Sedan(E90)
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BMW 335i Ep Battery 80Ah
Part Number: 61212353808
$151.99 MSRP: $195.00
You Save: $43.01 (23%)
Product Specifications
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2007-2013 BMW 335i | Coupe(E92), Sedan(E90)
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BMW 335i Ep Battery 70Ah
Part Number: 61212353811
$198.32 MSRP: $247.10
You Save: $48.78 (20%)
Product Specifications
- Replaced by: 61215A40E19
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2007-2011 BMW 335i | Sedan(E90)
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BMW 335i Ep Battery 80Ah
Part Number: 61212353813
$204.81 MSRP: $255.21
You Save: $50.40 (20%)
Product Specifications
- Replaced by: 61215A40E31
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2007-2011 BMW 335i | Sedan(E90)
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BMW 335i Battery, Manuf.: Exide (Warranty Only)
Part Number: 61217586962
$139.89 MSRP: $158.33
You Save: $18.44 (12%)
Product Specifications
- Other Name: Battery
- Replaces: 61-21-6-946-334
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2007-2013 BMW 335i | Coupe(E92), Sedan(E90)
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BMW 335i Battery, Manuf.: Exide (Warranty Only)
Part Number: 61217586961
$139.89 MSRP: $158.33
You Save: $18.44 (12%)
Product Specifications
- Other Name: Battery
- Replaces: 61-21-6-946-333
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2007-2013 BMW 335i | Coupe(E92), Sedan(E90)
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BMW 335i ORIGINAL BMW AGM-BATTERY
Part Number: 61216806755
$254.70 MSRP: $329.91
You Save: $75.21 (23%)
Product Specifications
- Other Name: Battery
- Replaces: 61-21-6-924-023
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2012-2015 BMW 335i | Sedan(F30)
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BMW 335i Original Bmw Battery, Filled
Part Number: 61217635788
$145.53 MSRP: $176.49
You Save: $30.96 (18%)
Product Specifications
- Other Name: Battery
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2012-2015 BMW 335i | Sedan(F30)
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BMW 335i Original Bmw Agm-Battery
Part Number: 61216805461
$243.59 MSRP: $306.22
You Save: $62.63 (21%)
Product Specifications
- Other Name: Battery
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2012-2015 BMW 335i | Sedan(F30)
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BMW 335i Original Bmw Agm-Batterie 90Ah
Part Number: 61216924023
$254.70 MSRP: $329.91
You Save: $75.21 (23%)
Product Specifications
- Replaced by: 61216806755
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2012-2015 BMW 335i | Sedan(F30)
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BMW 335i Ep Battery 92Ah
Part Number: 61212353812
$229.22 MSRP: $313.32
You Save: $84.10 (27%)
Product Specifications
- Replaced by: 61215A40E29
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2007-2015 BMW 335i | Convertible(E93), Coupe(E92), Sedan(E90), Sedan(F30)
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BMW 335i Battery, Manuf.: Douglas (Warranty Only)
Part Number: 61218381738
$103.15 MSRP: $123.00
You Save: $19.85 (17%)
Product Specifications
- Other Name: Battery
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2007-2013 BMW 335i | Coupe(E92), Sedan(E90)
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BMW 335i Battery, Manuf.: Douglas (Warranty Only)
Part Number: 61218381749
$114.05 MSRP: $136.00
You Save: $21.95 (17%)
Product Specifications
- Other Name: Battery
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2007-2013 BMW 335i | Coupe(E92), Sedan(E90)
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BMW 335i Battery, Manuf.: Douglas (Warranty Only)
Part Number: 61218381762
$119.15 MSRP: $144.50
You Save: $25.35 (18%)
Product Specifications
- Other Name: Battery
- Replaces: 61-21-8-361-827
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2007-2013 BMW 335i | Coupe(E92), Sedan(E90)
View related parts
BMW 335i Battery, Manuf.: Exide (Warranty Only)
Part Number: 61217586960
$174.96 MSRP: $218.41
You Save: $43.45 (20%)
Product Specifications
- Other Name: Battery
- Replaces: 61-21-6-946-332
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2007-2013 BMW 335i | Coupe(E92), Sedan(E90)

BMW 335i Batteries

BMW 335i Batteries provide the boost of electricity that cranks the turbocharged six-cylinder engine. They keep lights and infotainment alive with the key off and buffer the voltage whenever the alternator is not able to keep up with the demand. In the 335i lineup, these Batteries began with the traditional flooded lead acid battery that is based on six liquid-filled cells requiring occasional water top-ups. Then there are the maintenance-free flooded models that cut down on maintenance, and now many drivers prefer the absorbed glass mat versions that lock in the acid with their fiberglass mats to resist vibration and offer higher cold cranking amps in winter. No matter the style, each 12-volt pack supplies six cells in series. The Batteries also provide reserve capacity, which means the clock and memory features will remain powered during long parking stretches on BMW models. BMW specifies a BCI group size that will fit securely in the 335i battery tray with top posts, which will make cable access easy. Because of the way BMW matched battery output and overall vehicle draw, this means that replacement 335i Batteries with generous CCA and reserve capacity will ensure reliable starts even after cold nights or long periods of storage. Drivers who demand steady audio performance will also appreciate how the Batteries cushion dips in voltage when driving spiritedly.

If you are looking for OEM BMW 335i Batteries, we highly recommend to shop with us. Not only do we offer budget friendly prices, but we also provide fast delivery. In addition, we have a hassle-free return policy on all genuine BMW 335i Batteries that come backed by the manufacturer's warranty.

BMW 335i Batteries Parts Questions & Experts Answers

Battery, Manuf.: Douglas (Warranty Only)
61218381749
Q:
How to test the open-circuit voltage and perform a load voltage test on the batteries of a BMW 335i?
Posted by Jamie L.
A:
Before testing, load battery with 15 amperes for one minute with battery load-tester or switch headlights ON for about one minute without engine running. Connect digital voltmeter across battery terminals. Open-circuit voltage levels are given in Table c. If open-circuit voltage is OK but battery still lacks power for starting, perform a load voltage test. If open-circuit voltage is below 12.4 volts, recharge battery and retest. Battery charging notes are in this repair group.
Answered by BMW Parts Specialist Brad / Feb 12, 2025
Battery, Manuf.: Exide (Warranty Only)
61217586962
Q:
What steps should be followed regarding the batteries when they are disconnected or accidentally discharged and then reconnected on BMW 335i?
Posted by Vanessa M.
A:
Other than the Warnings and Cautions contained in this repair group and in 001 Warnings and Cautions, there are some things to do when a battery is disconnected or accidentally discharged then reconnected. The clock has to be reset, radio presets must be entered and the steering angle sensor should be calibrated using a BMW scan tool or equivalent. For power window regulator motors, there is an appropriate initialization process that must be followed which entails closing and opening the window completely several times while pressing down on the switch. It is important also to check one-touch control, anti-trapping, and comfort functions where applicable. When initializing sunroof it might require you to hold up the switch for some time. In order to calibrate compass in interior mirror you have to press push button until letter C appears on compass display, then drive vehicle at certain speed in a circle. Calibration is done when direction display comes on.
Answered by BMW Parts Specialist Blaine / Sep 15, 2025
Battery, Manuf.: Douglas (Warranty Only)
61218381738
Q:
What are the functions of a batteries load tester and how should it be conducted for accurate results on BMW 335i?
Posted by Allister P.
A:
To load voltage test, one needs a battery load tester. To do this, connect a high-resistance load across the battery terminals and measure its voltage simultaneously. Ensure that your battery is completely charged for more accurate findings. Before testing it, unplug cables attached to the battery. Change your battery when its voltage goes below that given in Table d.
Answered by BMW Parts Specialist Noah / Feb 04, 2026

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