JohnLite 2923 High Performance Compatible Replacement Battery
⚠️ Quick Reminder
🔹 Please ensure the original battery model number is listed in our product description and that your device model number matches for compatibility.
🔹 We only supply the batteries shown in the images. Device images are provided for reference only.
📸 Send Your Battery Photo / Unsure? Expert 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.
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Battery Care Guide
Battery Care Guide
Battery Usage and Maintenance Guidelines 🔋
Please read the following instructions carefully before using your new battery. Proper adherence will help ensure optimal performance and extended service life.
1. Cordless Phones, PDAs, and Power Tools (NiMH, NiCd, Lithium-Ion) 📱
Initial Charge
- Fully charge the battery overnight prior to first use.
Conditioning (First 2–6 Charge Cycles)
- Operate the device until the battery reaches approximately 20% capacity.
- Avoid premature recharging.
- Do not allow the battery to fully discharge during the initial cycles.
Post-Conditioning
- Recharge the battery only when necessary.
- These batteries are capable of approximately 500 charge cycles:
- Once daily → ~500 days
Twice daily → ~250 days
Note: Even a partial recharge is considered a full cycle.
2. Sealed Lead Acid (SLA) Batteries 💡
- No conditioning required.
- Maintain the battery in a fully charged state; avoid complete discharge.
- Capable of 300–400 charge cycles.
- Expected service life: 2–3 years, depending on usage conditions.
3. Laptop Batteries (Lithium-Ion) 💻
Initial Charge
- Fully charge the battery overnight prior to first use.
Conditioning (First 2–6 Charge Cycles)
- Charge fully, then discharge to approximately 20% capacity.
- Avoid complete discharge, as some devices may not detect a fully drained battery.
Post-Conditioning
- Minimize frequent plugging and unplugging.
- Allow the battery to discharge moderately at least once per month to maintain optimal performance.
- Occasional cycling is recommended to sustain battery health.
Professional Recommendation
Adhering to these guidelines will enhance battery longevity and ensure reliable performance.
For further assistance regarding your battery or order, our customer support team is available to provide guidance.
Delivery and Shipping
Delivery and Shipping
⚡ Everything You Need to Know About Shipping with BatteryWeb (USA)
We know reliable delivery matters when you need power fast. Here’s how BatteryWeb makes shipping easy across the USA:
🚚 Shipping & Delivery
Most orders ship next business day (some products like sealed lead acid may take a little longer).
Same-day shipping available if you order before 11:59 AM (delivery depends on the carrier).
We ship nationwide using FedEx, UPS, USPS, DHL, and regional ground carriers.
Shipping costs are calculated automatically at checkout based on weight, distance, and carrier.
Transit times shown are estimates only (business days, no weekends/holidays).
🌍 Shipping Restrictions
Lithium batteries cannot be shipped by USPS or air. They must go via FedEx Ground, UPS Ground, or DHL Ground.
PO Box deliveries are only available via USPS.
At this time, we do not ship lithium batteries to Puerto Rico. NiMH, NiCd, and Alkaline can be shipped.
📦 Important Notes
Double-check your shipping address! If an incorrect address is used and the order is returned, re-shipping costs are the buyer’s responsibility.
If a product is temporarily out of stock, we’ll notify you right away with the expected restock date—or issue a refund if you prefer.
💲 Currency & Pricing
All prices are shown in USD.
Orders shipped outside the USA may be subject to local taxes, customs fees, or import duties. These are the buyer’s responsibility.
⚡ At BatteryWeb, we’re committed to getting your batteries delivered quickly, safely, and affordably—so you’ll always have the power you need, when you need it.
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.
🔹 Our products are generic replacement parts and are not affiliated with, endorsed by, or manufactured by the original equipment manufacturers (OEMs).
Volts & Amps
12 Volts | 7.5 Ah
Terminal Type
F1
JohnLite 2923 Replacement Battery — Compatible with JohnLite 2923
Replace your exhausted unit with the JohnLite 2923 replacement battery engineered for reliable emergency lighting performance and peace of mind. This high-performance battery is designed to meet or exceed OEM SLA specifications for the JohnLite 2923 model, delivering dependable power when you need it most. With Absorbent Glass Mat (AGM) technology and a maintenance-free, spill-proof design, the JohnLite 2923 battery is a long-lasting battery choice for critical systems and everyday devices alike.
Key Specifications
- Model: JohnLite 2923
- Brand: SigmasTek
- Voltage: 12 Volts
- Capacity: 7.5 Ah
- Terminal: F1
- Battery Type: SLA (Sealed Lead Acid)
- Technology: Absorbent Glass Mat (AGM)
- Design: Maintenance-Free, Spill Proof Construction
- Certifications: U.L. Recognized and CE Certified
- Condition: Brand New, Factory Fresh
- Warranty: 1 Year
Benefits
This replacement battery is optimized for long service life and steady output under load. AGM technology provides low internal resistance for efficient charge acceptance and discharge performance, making it a high-performance battery for emergency lighting systems and other critical applications. The maintenance-free design eliminates the need to add water or perform routine upkeep, while the spill-proof construction enhances safety during installation and operation.
Durability is built into every JohnLite 2923 replacement battery: rugged construction combined with U.L. and CE recognition ensures it satisfies safety and quality expectations. The battery’s stable chemistry and reliable construction make it a long-lasting battery option that minimizes downtime and replacement frequency for facilities managers, contractors, and homeowners.
Typical applications include essential emergency power roles as well as a broad range of auxiliary uses:
- Emergency Lighting
- Security Alarms
- Fire Alarms
- UPS and backup power systems
- Home & Garden devices
- Consumer Electronics and small medical equipment
- Portable power tools and emergency power packs
Choose the JohnLite 2923 replacement battery for reliable, ready-to-use power. If you want a high-performance battery that fits your JohnLite 2923 exactly and delivers consistent results in critical situations, add this long-lasting battery to your cart now and secure dependable backup power.
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