mareg-batteries-61-015-88-2297-388

Service-InformationM otorcycle BMW NA Service Department Mareg Batteries Infonnati on: Group: 61 Genera 1 Electrics March, 1988 61 015 88 (2297) For USA Only Three different capacity batteries are currently used on production motorcycles, worldwide: 30 Amp/hr. 25 Amp/hr. 20 Amp/hr. RlOORT RlOORS KlOOLT KlOO K75 U.S. A1 1 mode1 s All models RSO, RSORT R80GS, R 1 OOGS R65 20 Amp/hr. and Continual draining of the 20 and 30 Amp/hr. batteries 30 Amp/ hr. : from: 25 Amp/hr.: RlOORSan d RlOORT: Caution: Motorcycles not used for extended lengths of time Non-Approved electrical accessories Riding at low speeds (e.g. low charging) may run down these batteries to an irreparable state. The 20 and 30 Amp/hr batteries are sensitive to constant discharge because there is less acid and there are more plates within the battery shell. When these batteries discharge, the specific gravity of the acid can become so low that it will be difficult for the battery to recover with a charge. The 25 Amp/hr battery has more room between the pl ates and more acid, so it can recover from a discharge more readily. This battery is also less sensitive to sulfati on. In order to provide reliable cold-starting on RlOORS, RlOORT, and earlier 1000cc Boxer models, it is important that the 30 Amp/hr. battery be used. These models require more cold weather cranking power. Only use a battery charger with 3 Ampm aximumo utput, which can taper the charge rate as the battery accepts the charge. We recommendt he BMWM otorcycle Battery Charger – part no. 95 61 1 250 500. ( ( ( RlOOGSSt arter Motor: Very truly yours, All production RlOOGSs will have a newly developed starter motor which requires less starting current from the battery. This new starter motor weighs 4.4 lbs. less than previous motors, but delivers the same amount of torque to start the engine. BMWof North America, Inc. Frank Stevens Richard Dampf National Service Manager National Technical Manager jel/511.2