JohnLite 2939 High Performance Replacement Battery 4.85 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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JohnLite 2939 High Performance 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 | 7.5 Ah
Terminal Type
F1
JohnLite 2939 Replacement Battery (Compatible with JohnLite 2939)
Ensure your JohnLite 2939-powered emergency and backup systems remain ready with a high-quality replacement battery that meets or exceeds OEM SLA specifications. This replacement battery is built with AGM technology, is maintenance-free, and offers spill-proof reliability—making it a dependable choice for emergency lighting, alarms, and critical devices that require consistent power and long service life.
Key Specifications
- Compatibility: JohnLite 2939
- Technology: Absorbent Glass Mat (AGM) Technology
- Design: Maintenance-Free Design
- Construction: Spill Proof Construction
- Certifications: U.L. Recognized and CE Certified
- Condition: Brand New, Factory Fresh
- Warranty: 1 Year Warranty
- Brand: SigmasTek
- Voltage: 12 Volts
- Capacity: 7.5 Ah
- Terminal Type: F1
Benefits
- Tough and reliable: The AGM construction and spill-proof casing help protect the battery in installed environments, providing durability for everyday use and emergency standby.
- Prolonged service life: This long-lasting battery is engineered for consistent performance through multiple charge cycles, helping reduce replacement frequency and total cost of ownership.
- Consistent high performance: As a high-performance battery replacement, it provides stable power delivery necessary for UPS systems, emergency lighting, security alarms, and life-safety devices.
- Minimal maintenance: Maintenance-free design eliminates the need for electrolyte checks and reduces the time spent on battery upkeep.
- Certified safety and compliance: U.L. recognition and CE certification confirm suitable safety standards for a wide array of deployments.
- Broad application compatibility: Perfect for emergency lighting, fire and security alarms, consumer electronics, home & garden needs, and medical equipment. Also suitable for UPS and standby power for tools and communications.
- Ready-to-install: Delivered brand new and factory fresh, backed by a 1 year warranty to ensure confidence and seamless integration with JohnLite 2939 systems.
Don’t leave your safety systems to chance. Order this replacement battery for the JohnLite 2939 today and enjoy reliable, long-lasting power from a trusted, high-performance battery solution.
Technical Specifications
Product Highlights
- Brand Replacement : JohnLite 2939 Battery
- Manufacturer: SigmasTek
- Product Type: Emergency Power
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Payment & Security
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