Battery 12V/20AH - BMW Airhead, K Bike, Hexhead, Oilhead 61 21 2 346 800, 61 21 0 403 224 / WestCo AGM
Battery 12V/20AH - BMW Airhead, K Bike, Hexhead, Oilhead 61 21 2 346 800, 61 21 0 403 224 / WestCo AGM
Battery 12V/20AH - BMW Airhead, K Bike, Hexhead, Oilhead 61 21 2 346 800, 61 21 0 403 224 / WestCo AGM
Battery 12V/20AH - BMW Airhead, K Bike, Hexhead, Oilhead 61 21 2 346 800, 61 21 0 403 224 / WestCo AGM
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Battery 12V/20AH - BMW Airhead, K Bike, Hexhead, Oilhead 61 21 2 346 800, 61 21 0 403 224 / WestCo AGM

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Technical Specifications:
BAT-12V20P
Height: 6.5 Inches / 165 mm
Length: 7 Inches / 178 mm
Width: 3 Inches / 76 mm

You may be able to fit the larger BAT-12V30
Height: 6 7/8 Inches / 175 mm
Length: 6 1/2 Inches / 165 mm
Width: 4 7/8 Inches / 124 mm

NOTE:
BMW K Bike OE batteries are slightly smaller than our aftermarket replacements and may require 185 mm bolts (x 2) to fasten the battery down. refer to EME Part # BAT-BOLT in related products below.
  • AGM batteries run on the recombination process which requires a tightly sealed battery to avoid contamination. This also makes for a maintenance free design. AGM batteries to not leak or corrode from use.
  • AGM batteries have less internal resistance resulting in more CCA (Cold Cranking Amperes) allowing a easy start in cold temperatures.
  • Slower discharge rate at 2% per month compared to traditional wet batteries that discharge 15%per month No maintenance, longer service life
  • Front or top threaded holes for ease of cable installation.
  • AGM batteries thrive in high current, high power applications and extremely cold environments
  • CCA 275
  • 12 month warranty

Learn more about AGM batteries here.

Euro MotoElectric batteries are fresh from battery factory production! Then prior to shipping to our customers we maintain our batteries on a Battery Tender. Our Battery Tender shop charger fully charges EME batteries and maintains proper storage voltage until it goes out for shipment. The Battery Tender uses BTP Microprocessor Technology and performs 4-step Charging.

1. Initialization: Monitor Circuit verifies appropriate battery voltage levels and good electrical continuity between the battery and the charger DC output.

2. Bulk Charge: Constant Current at Full Power. Bulk Charge ends at approximately 75% to 80% of full battery recharge.

3. Absorption Charge: Constant Voltage at Absorption Level. This conditions the battery for optimum performance. Absorption charge ends when the battery charging current drops below the optimum recharge threshold or the absorption timer expires.

4. Float Charge: Constant Voltage at Float / Maintenance level. Keeps battery fully charged and maintains high specific gravity. Full charge reset monitor protects battery against excessive appliance current draw while charging. Float charge continues indefinitely. Your battery is susceptible to damage if overcharged/undercharged. We recommend the use of a voltage regulated battery charger having on charge voltage, at room temperature, at or between 14.4 to 14.6 volts at 68°F (20°C). The only way to determine state of charge of your battery is with a voltmeter.

Read more about battery health and testing here.

Battery Voltage

State of Charge / Battery Condition

Recommended Action

12.7 V

100 %

12.6 V

90%

12.4 V

75 %

Charge Battery + retest

12.2 V

50 %

Replace Battery

12.0 V

25 %

Replace Battery

11.9 V or less

discharged

Replace Battery

Read more about battery health and testing here.
BAT-12V20P
Height: 6.5 Inches / 165 mm
Length: 7 Inches / 178 mm
Width: 3 Inches / 76 mm

BAT-12V30
Height: 6 7/8 Inches / 175 mm
Length: 6 1/2 Inches / 165 mm
Width: 4 7/8 Inches / 124 mm

EME Part Number BAT-12V20P
BMW Part Number 61 21 0 403 224
61 21 2 346 800
Model Year
R45 (248) 01/78-07/85 ECE
R45/N (248) 03/78-07/85 ECE
R45T (248) 10/80-06/85 ECE
R45T/N (248) 09/80-07/85 ECE
R50/5 (2476) 08/69-07/73 ECE
R60/5 (2476) 08/69-07/73 ECE
R65 (248) 01/78-07/85 ECE
R65 (248) 07/78-04/85 USA
R65GS (2471) 11/87-11/92 ECE
R65LS (248) 03/81-03/85 ECE
R65LS (248) 06/81-02/85 USA
R65T (248) 09/80-07/85 ECE
R75/5 (2476) 08/69-07/80 ECE
R80G/S (2471) 06/80-03/87 USA
R80ST (2471) 10/82-10/84 USA
Oilheads
R850R (259R) 08/95-04/97 USA
R1100GS (259E) 02/94-07/06 USA
R1100GS (259E) 02/94-07/06 USA
R1100R (259R) 09/94-11/00 USA
R1100R (259R) 09/94-11/00 USA
R1100RS (259S) 06/92-02/01 USA
R1100RS (259S) 06/92-02/01 USA
R1100RT (259T) 09/94-07/01 USA
R1100RT (259T) 09/94-07/01 USA
R1100S (259S) 01/97-09/04 USA
R1100S (259S) 01/97-09/04 USA
R1150GS (R21) 09/98-11/03 USA
R1150GS (R21) 09/98-11/03 USA
R1150R (R28) 03/00-02/06 USA
R1150R (R28) 03/00-02/06 USA
R1150R Rockster (R28) 03/02-07/05 USA
R1150RS (R22) 11/00-01/04 USA
R1150RS (R22) 11/00-01/04 USA
R1150RT (R22) 02/00-02/06 USA
R1200 Montauk (59C2) 10/02-10/04 USA
R1200C 04 (59C1) 10/02-07/04 USA
R1200C 98-03 (59C1) 06/96-05/03 USA
R1200C 98-03 (59C1) 06/96-05/03 USA
R1200C I 01-03 (59C3) 09/00-05/03 USA
R1200C I 01-03 (59C3) 09/00-05/03 USA
R1200C I/M 04 (59C3) 10/03-05/04 USA
R1200CL (K30) 10/01-07/04 USA
R1200CL (K30) 10/01-07/04 USA
K Bikes
K75 (K569) 07/85-12/88 ECE
K75 (K569) 12/84-11/96 ECE
K75 (K569) 07/90-09/95 USA
K75C (K569) 06/85-06/88 ECE
K75C (K569) 07/85-03/90 USA
K75RT (K569) 01/89-06/05 ECE
K75RT (K569) 09/89-01/95 USA
K75S (K569) 10/85-05/95 ECE
K75S (K569) 05/86-09/94 USA
K1100LT (89V2) 02/92-03/97 USA
K1100RS (89V2) 11/92-06/96 USA
K1200GT 03-04 (K41) 04/02-10/04 USA
K1200GT 03-04 (K41) 04/02-10/04 USA
K1200LT 05-09 (89V3) 02/03-07/08 USA
K1200LT 99-04 (89V3) 06/97-11/03 USA
K1200LT 99-04 (89V3) 06/97-11/03 USA
K1200RS 02-04 (K41) 03/00-07/04 USA
K1200RS 02-04 (K41) 03/00-07/04 USA
K1200RS 98-01 (89V3) 05/96-12/00 USA
K1300GT (K44) 12/07-10/10 ECE
K1300GT (K44) 12/07-08/10 USA
K1600GT (K48) 01/10-09/16 ECE
K1600GT (K48) 02/10-03/16 USA
K1600GTL (K48) 01/10-09/16 ECE
K1600GTL (K48) 01/10-04/16 USA
K1600GTL EXCL (K48) 06/13-08/16 ECE
K1600GTL EXCL (K48) 06/13-06/16 USA
Hexheads
R900RT 05-09 (K26) 04/05-09/09 ECE
R900RT 05-09 (K26) 04/05-09/09 ECE
R900RT 05-09 (K26) 04/05-07/09 USA
R900RT 05-09 (K26) 04/05-07/09 USA
R900RT 09-10 (K26) 07/09-09/13 ECE
R900RT 09-10 (K26) 07/09-09/13 ECE
R900RT 09-10 (K26) 03/09-05/10 USA
R900RT 09-10 (K26) 03/09-05/10 USA
R1200RT (K26) 11/03-11/09 ECE
R1200RT (K26) 11/03-11/09 ECE
R1200RT 05-09 (K26) 11/03-09/09 USA
R1200RT 05-09 (K26) 11/03-09/09 USA
R1200RT 10-13 (K26) 07/08-06/14 ECE
R1200RT 10-13 (K26) 07/08-06/14 ECE
R1200RT 10-13 (K26) 07/08-05/14 USA
R1200RT 10-13 (K26) 07/08-05/14 USA

Customer Reviews

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M
Michael Orlin
Perfect

Powers my 76 R/90, quick strong starts. Thought I had a bad starter, Kevin suggested I try a battery first and he was right! Saved me a lot of time and money!