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SigmasTek  |  SKU: BW-19027

BMW 900CC R90/6 R90S 1969-1976 High Performance Replacement Battery 21.85 lb

22% off
Sale price $123.99 USD Regular price $158.99
Shipping calculated at checkout.
Maintenance-free AGM design eliminates the need for acid refills
Spillproof and leakproof for safe, hassle-free use
U.L. recognized and CE certified for quality assurance
Superior starting power with deep cycle capacity for reliable performance
Built to resist extreme heat, freeze, and vibration conditions
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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

Delivery and Shipping

🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.


Volts & Amps

12 Volts | 30 Ah

Terminal Type

Nut & Bolt

BMW 900CC R90/6, R90S, 1969-1976 Replacement Battery

The BMW 900CC R90/6, R90S, 1969-1976 replacement battery is engineered to provide reliable, maintenance-free power for classic BMW twins from 1969 through 1976. Featuring AGM absorbed glass mat technology and factory-fresh construction, this replacement battery delivers dependable starting performance, deep-cycle ability, and reduced maintenance so you can keep your vintage R90 running without the hassle of acid handling or frequent servicing.

Key Specifications

  • Maintenance-Free Design
  • AGM (Absorbed Glass Mat) Design
  • Spillproof and Leakproof Design
  • U.L. Recognized and CE Certified
  • Valve Regulated Vent System
  • Extreme Freeze, Heat and Vibration Resistance
  • Superior Starting Power and Deep Cycle Capacity
  • Brand New, Factory Fresh
  • 6 Month Warranty
  • Designed for high rate discharge applications such as motorcycles
  • Compatible Vehicle: BMW 900CC R90/6, R90S, 1969-1976
  • Manufacturer / Brand: SigmasTek
  • Voltage: 12 Volts
  • Capacity: 30 Ah
  • Terminal Type: Nut & Bolt

Benefits

This replacement battery combines rugged construction with maintenance-free convenience to offer long life and dependable performance. The absorbed glass mat design securely immobilizes the electrolyte, creating a spillproof and leakproof battery that is safe to mount in a motorcycle’s confined battery compartment. Its valve-regulated system ensures consistent internal conditions, while certifications such as U.L. and CE highlight quality manufacturing and safety compliance.

Riders will appreciate the superior starting power when bringing classic BMW engines to life, especially after sitting idle. The battery’s deep-cycle capacity supports lighting and accessory loads during rides and provides a buffer for short-duration high-rate discharges. Built to resist extreme freeze, heat, and vibration, this long-lasting battery sustains reliable service in varied riding environments and road conditions.

Beyond vintage motorcycles, the battery’s sealed lead-acid design makes it suitable for secondary uses including UPS systems, emergency power backup, and portable tools that require a dependable sealed battery source. Nut & bolt terminals ensure a secure electrical connection and straightforward installation for most OEM battery trays and connectors.

Upgrade your BMW 900CC R90/6 or R90S with this high-performance replacement battery today. Purchase now to get a long-lasting battery backed by a 6 month warranty and factory-fresh quality — fast shipping available for in-stock items.

Technical Specifications

Voltage12 Volts
Amp Hours30 Ah
Terminal TypeNut & Bolt
Cold Cranking Amps (CCA)385
Length (in.)6.54
Width (in.)4.96
Height (in.)6.89
Weight (lb.)21.83

Product Highlights

  • Brand Replacement : BMW
  • Manufacturer: SigmasTek
  • Product Type: Motorcycle
  • Warranty: 6 Months
  • Bulk Orders: sales@batteryweb.com

Connections & Interface

  • Polarity: "'-/+"

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