JohnLite 9166DS High Performance Replacement Battery
Couldn't load pickup availability
⚠️ 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.
POST YOUR IMAGE
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
6 Volts | 4.5 AH
Terminal Type
F1
JohnLite 9166DS Battery (Replacement) - Compatible with JohnLite 9166DS
Replace your failing emergency light battery with a reliable, high-quality JohnLite 9166DS replacement battery designed for dependable performance and seamless compatibility. This rechargeable Sealed-Lead-Acid (SLA) emergency lighting battery meets or exceeds OEM specifications for the JohnLite 9166DS model, delivering consistent output, maintenance-free operation, and the peace of mind you expect from a trusted replacement battery. Ideal for critical lighting and standby systems, it provides the reliability required for emergency situations and everyday readiness.
Key Specifications
- Model Compatibility: JohnLite 9166DS
- Battery Type: Rechargeable Sealed-Lead-Acid (SLA) Emergency Lighting Battery
- Technology: Absorbent Glass Mat (AGM)
- Design: Maintenance-Free with Spill Proof Construction
- Certifications: U.L. Recognized and CE Certified
- Condition: Brand New, Factory Fresh
- Brand: SigmasTek
- Voltage: 6 Volts
- Capacity: 4.5 AH
- Terminal Type: F1
- Warranty: 1 Year
Benefits
This JohnLite 9166DS high-performance battery uses AGM technology to provide superior charge acceptance, vibration resistance, and zero maintenance. As a replacement battery engineered to meet OEM standards, it delivers stable, long-lasting power for emergency lighting fixtures, exit signs, and other standby demands. The maintenance-free, spill-proof design reduces installation downtime and eliminates the need for routine electrolyte checks, making it ideal for commercial and industrial environments.
Durability is built into the construction: the AGM plates and sealed housing resist leaks and withstand typical installation stresses. Expect dependable cycle life and consistent recharge behavior that help the unit maintain readiness over extended service intervals—qualities that make this a long-lasting battery option for emergency circuits. As a high-performance battery for critical systems, it also supports UPS modules, emergency power cabinets, and portable power tools used in facility maintenance.
Whether you are a building manager replacing emergency lighting cells or a technician servicing an exit sign, this JohnLite 9166DS replacement battery is designed for straightforward replacement and immediate functionality. Certified safety listings and a one-year warranty add confidence to every purchase.
Ready to restore reliable emergency lighting? Order this JohnLite 9166DS replacement battery now to ensure uninterrupted protection and long-lasting performance.
-
Voltage
-
Amp Hours
-
Terminal Type
-
Length (in.)
-
Width (in.)
-
Height (in.)
-
Weight (lb.)
-
Warranty
-
Type
-
Manufacturer
-
Brand Replacement
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.



