Power Source WP3-6 (91-020) High Performance Replacement Battery 1.37 lb
— Ready to ship immediately
Check that your old battery model number and device model to match our description. This makes sure they work together.
We ship your order same day if you buy it before 4 PM EST.
Power Source WP3-6 (91-020) High Performance Replacement Battery is backordered and will ship as soon as it is back in stock.
Let customers speak for us
Send Your Battery Photo
Expert Technician Help
Snap a photo or video of your battery and send it to us. We'll identify the exact replacement—fast and hassle-free. Our team has helped thousands of customers find the right battery quickly and easily.
POST YOUR BATTERY IMAGE
Product & Solutions Expert
✉ sales@batteryweb.com
Battery Care Tips
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
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.
Disclaimer
Disclaimer
⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.
🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.
Volts & Amps
6 Volts | 3 Ah
Terminal Type
F1
Power Source WP3-6 (91-020) Replacement Battery — Compatible with Power Source WP3-6 (91-020)
This SigmasTek replacement battery is designed for direct compatibility with the Power Source WP3-6 (91-020) model and delivers dependable performance when you need it most. As a premium replacement battery built with Absorbent Glass Mat (AGM) technology, it provides maintenance-free operation, spill-proof construction, and reliable power for alarm systems, emergency lighting, UPS units, and portable equipment. If you are shopping for a high-performance battery that meets or exceeds OEM specifications, this long-lasting battery is optimized for stable output and consistent service life.
Key Specifications
- Replacement for: Power Source WP3-6 (91-020)
- Brand: SigmasTek
- Battery Type: Sealed Lead Acid (SLA)
- Technology: Absorbent Glass Mat (AGM)
- Voltage: 6 Volts
- Capacity: 3 Ah
- Terminal: F1
- Design: Maintenance-Free, Spill Proof Construction
- Certifications: U.L. Recognized and CE Certified
- Condition: Brand New, Factory Fresh
- Warranty: 1 Year Warranty
- Compatibility: Meets or exceeds OEM SLA battery specifications
Benefits
- Durability and Reliability: Built with AGM technology, this replacement battery resists vibration and shock while remaining leak-proof for safe use in enclosed devices and portable equipment.
- Maintenance-Free Operation: The sealed construction eliminates the need for topping off electrolyte, reducing upkeep and downtime for critical systems.
- Long Life and Stable Performance: Engineered to deliver consistent voltage under load, the battery provides dependable backup power for UPS systems, emergency lighting, security alarms, and small medical or monitoring devices.
- High-Performance Battery Design: Ideal for frequent cycling and standby applications, this high-performance battery offers quick recharge acceptance and steady discharge characteristics to protect sensitive electronics.
- Certified Safety: U.L. recognition and CE certification ensure the battery meets safety and quality standards for consumer and industrial use.
- Wide Application Range: Commonly used in uninterruptible power supplies, emergency power packs, alarm panels, backup lighting, and handheld equipment where a compact, long-lasting battery is required.
Ready to replace your old Power Source WP3-6 (91-020) battery? Choose this reliable SigmasTek replacement battery for a hassle-free swap that restores performance and extends service life. Order now to secure a high-quality, long-lasting battery with a 1 year warranty and fast shipping.
Technical Specifications
Product Highlights
- Brand Replacement : Power Source WP3-6
- Manufacturer: SigmasTek
- Product Type: SLA Batteries
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

