Description 051426 Emergi-Lite Battery Replacement (2.4V 1400mAh NiCd) Need a reliable replacement for your Emergi-Lite / Thomas & Betts (T&B) 051426 emergency lighting battery? This 2.4V 1400mAh NiCd rechargeable battery pack is commonly used in emergency lights and exit signs. Before You Order (Quick Match Checklist) Voltage: Must be 2.4V (do not substitute 3.6V / 4.8V packs). Chemistry: NiCd (Nickel Cadmium) to match typical OEM charging circuits. Capacity: 1400mAh (higher is usually OK if size/fit matches; never lower voltage). Connector: Female Faston – Match your existing terminals (common quick-disconnect/faston style). Physical fit: Confirm pack layout and dimensions in your fixture. Common Applications Emergency lighting fixtures Exit signs Combination exit/emergency units Cross References / Replaces T&B: 051426, 51426 Teig: 051426, 51426 OSI: OSA206 BatteryGuy: 18845, BGN1100-2DWP-FP BCN1100-2DWP-FC Dantona / Ultralast: Custom-182 (UltraLast Green) Other cross refs: BCN1100-2DWP-FC, Interstate NIC1429, OSI OSA206 Installation Tip Turn power off, open the canopy, and swap the battery pack one connector at a time. Make sure polarity and connector style match your original pack. After installation, allow a full charge cycle and run a quick test. Note: Manufacturers may revise battery requirements. Always match the original pack’s voltage, connector, and size. Exact class replacement: 2.4V NiCd rechargeable battery pack Capacity: 1400mAh (1.4Ah) for dependable emergency runtime Designed for: emergency lights and exit signs Common fitment family: 051426 / 51426-style packs Fast swap: match your existing connector/terminal style Best practice: verify voltage connector dimensions before ordering FAQ What is the 051426 battery used for? The 051426 battery is commonly used in emergency lighting fixtures and exit signs (including combo units). Always confirm your existing pack’s voltage and connector. What does this battery replace? Common cross references include T&B 051426 / 51426 and Teig 051426 / 51426. Other listings reference equivalents like OSI OSA206, BatteryGuy 18845, and Dantona Custom-182. Can I replace NiCd with NiMH? Sometimes—but many emergency light charging circuits are designed around NiCd. For best compatibility, match the original chemistry unless your fixture documentation explicitly allows NiMH. How do I confirm I’m ordering the right pack? Match voltage (2.4V), chemistry (NiCd), connector type, and physical dimensions/layout of the pack in your fixture. Do I need to charge it before testing? Yes. After installation, allow the fixture to charge (often 24 hours for a full charge) and then run a test. How should I dispose of the old battery? NiCd batteries should be recycled properly. Use a local battery recycling program or approved drop-off location. How to Match Your 051426 Battery (Fast, No-Guess Guide) Read the label on the old pack: confirm it says 2.4V and note the 1400 mAh rating. Check the connector: quick-disconnect/faston style vs. plug. Match what you have. Measure the pack: length/width/height and cell layout (commonly a 1×2 configuration). Confirm wire length and polarity: take a quick photo before disconnecting anything. After install: allow a full charge cycle, then press the test button to verify runtime. Common Signs the Battery Needs Replacement Unit won’t stay lit during a test Very short runtime Swollen pack, corrosion, or heat damage Fixture shows “charging” but fails under load If you’re unsure, send a photo of the old battery label and connector style—matching the connector and dimensions prevents ordering the wrong pack.
