Simplex 20821.88 Compatible Replacement Battery 12.66 lb
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Check that your old battery model number and device model to match our description. This makes sure they work together.
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Simplex 20821.88 Compatible Replacement Battery is backordered and will ship as soon as it is back in stock.
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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
12 Volts | 18 Ah
Terminal Type
Nut & Bolt
Simplex 20821.88 Replacement Battery — Compatible with Simplex 20821.88
The Simplex 20821.88 replacement battery is a purpose-built 12V 18AH SLA pack with NB terminal compatibility, engineered for dependable performance and longevity. This high-performance battery offers high discharge capability, a broad operating temperature range, and a sealed VRLA design for safe, maintenance-free operation. When your device lists Simplex 20821.88, this replacement battery provides the consistent power and fit required to restore full functionality.
Key Specifications
- Brand / Model: Simplex 20821.88 replacement battery
- Chemistry: Valve-Regulated Lead Acid (VRLA) Sealed Battery Technology
- Certification: UL (Underwriters Laboratories) certified
- Voltage: 12 V
- Amp Hours: 18 AH
- Terminal Type: NB
- Weight: 12.65 Lbs
- Dimensions: Length 7.13 In, Width 3 In, Height 6.59 In
- Package: Package contains 1 battery
- Warranty: 1-year Warranty
- Shipping: ETD 3 Business Days; Shipping Methods – UPS Ground and USPS; we ship in 1 business day for all in-stock items
Benefits
- Durability: Constructed with sealed VRLA technology to deliver maintenance-free reliability and resistance to vibration and shock.
- Long Life: The Simplex 20821.88 replacement battery offers a long expected service life, making it a cost-effective solution for routine replacements and preventative maintenance.
- High Performance: Designed for strong discharge and steady voltage output under load, this high-performance battery supports demanding backup and standby duties.
- Safe and Flexible: VRLA design permits safe operation in different orientations and in proximity to sensitive equipment, while UL certification ensures industry-standard safety.
- Common Uses: Ideal for UPS backup systems, emergency lighting, security and fire alarm systems, telecommunication equipment, medical instruments, and portable tools that require a reliable 12V 18AH NB terminal battery.
- OEM Match: Meets or exceeds original manufacturer specifications to ensure a seamless replacement and reduce installation time.
Ready to replace your old battery with a proven, long-lasting battery? Order the Simplex 20821.88 replacement battery today for fast dispatch, UL-certified safety, and a full 1-year warranty. Purchase now to keep your critical systems powered.
Technical Specifications
Product Highlights
- Brand Replacement : Simplex 20821.88 Replacement
- Manufacturer: SigmasTek
- Product Type: SLA Batteries
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Payment & Security
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