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Dual-Lite CV3GEB 4.8V 800mAh Ni-CD Compatible Battery 24D677

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From $30.99 USD $38.99
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Fits Dual-Lite CV3GEB, CV3GEBI, CV3GEW emergency exit lights; replaces OEM part 24D677.
4.8V, 800mAh Ni-CD cell delivers 3.84Wh for full emergency duration discharge on mains failure.
Connector slides into slot with locking tab; orientation marked on housing — no polarity risk.
Bench testing showed stable BMS float voltage after 24-hour charge cycle; no early cutoff observed.
Run a full manual test cycle within 24 hours of install by holding the test button — this lets the charge controller register the new cell capacity before your next compliance duration test.
Delivery time

This product ships directly from our Manufacturer’s Warehouse and is usually delivered within 5 – 8 business days to your doorstep.

Discount: As a thank you for your patience, enjoy 5% off on your order
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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

🔹 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.

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⚠️ 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.

Voltage

4.8V

Amp

800mAh

Dual-Lite CV3GEB Series — 4.8V Ni-CD Replacement Battery (24D677)

This is a 4.8V, 800mAh Ni-CD replacement battery for Dual-Lite emergency lighting units cross-referencing OEM part number 24D677. It fits the CV3GEB, CV3GEBI, CV3GEW, CV3GEWI, and over 179 additional Dual-Lite emergency light models. The cell pack slots into the fitting's existing battery bay and connects to the onboard charge controller without modification.

  • CV3GEB family compatibility: The CV3GEB, CV3GEBI, CV3GEW, and CV3GEWI share the same 4.8V three-cell Ni-CD configuration and the same physical footprint — 50mm × 28.5mm × 28.5mm. The charge controller in these units floats at a fixed voltage calibrated for Ni-CD chemistry, so this cell pack matches both the electrical and mechanical spec without adapter hardware.
  • Bench tested on actual hardware: We cycled this pack through a simulated mains-failure test sequence. The BMS accepted charge within the expected float window, and the cells reached nominal voltage before the first full test cycle completed. No voltage excursions or cutoff events occurred during load.
  • Post-installation test cycle: Within 24 hours of fitting, hold the test button for the full rated duration. This confirms the new cell accepts load under emergency draw conditions and allows the charge controller to register actual cell capacity before your next scheduled compliance inspection.

Charge indicator staying red after installing the new 24D677 pack

Replacement Ni-CD cells typically ship at a reduced state of charge after storage — often below the float acceptance window the CV3GEB charge controller expects to see. When the controller reads incoming cell voltage as too low, it holds the fault or charging indicator rather than switching to green or steady. Allow 24 hours on mains power before assuming the cell is defective. Most units clear the red indicator once the pack climbs above approximately 4.2V on a 4.8V three-cell string.

Emergency light dims noticeably partway through a duration test

A new pack that dims mid-test has not yet reached full capacity — this is a conditioning issue, not a cell defect. Ni-CD cells fresh from storage often deliver only 60–70% of rated capacity on the first discharge cycle. Run one complete charge-and-full-test cycle before recording the result for compliance purposes. After that initial cycle, capacity typically reaches the rated 800mAh and the fitting sustains full lamp output through the complete test duration.

Compatible Models

CV3GEB CV3GEBI CV3GEW CV3GEWI CV3REBI CV3REWI CVD1GEBN CVD1GEW CVD2GEBN CVD2GEW LECDGWE LECDGWEI LECDRWE LECDRWEI LECSGWE LECSGWEI LECSRWE LECSRWEI LEEDGWE LEEDGWEI LEEDRWE LEEDRWEI LEESGWE LEESGWEI LEESRWE LEESRWEI LEWSGWE LEWSGWEI LEWSRWE LEWSRWEI LN4XGWE LN4XGWEI LN4XRWEI LXUGBE LXUGBEI LXUGWE LXUGWEI LXURBEI LXURWEI SCDGBE SCDGBEI SCDGBNE SCDGBNEI SCDGWE SCDGWEI SCDGWNE SCDGWNEI SCDRBEI SCDRBNEI SCDRWEI SCDRWNEI SCSGBE SCSGBEI SCSGBNE SCSGBNEI SCSGWE SCSGWEI SCSGWNE SCSGWNEI SCSRBEI SCSRBNEI SCSRWEI SCSRWNEI SEDGBE SEDGBEI SEDGBNE SEDGBNEI SEDGWE SEDGWEI SEDGWNE SEDGWNEI SEDRBEI SEDRBNEI SEDRWEI SEDRWNEI SEMRDGBE SEMRDGBEI SEMRDGBNE SEMRDGBNEI SEMRDGWE SEMRDGWEI SEMRDGWNE SEMRDGWNEI SEMRDRBE SEMRDRBEI SEMRDRBNE SEMRDRBNEI SEMRDRWE SEMRDRWEI SEMRDRWNE SEMRDRWNEI SEMRSGBE SEMRSGBEI SEMRSGBNE SEMRSGBNEI SEMRSGWE SEMRSGWEI SEMRSGWNE SEMRSGWNEI SEMRSRBE SEMRSRBEI SEMRSRBNE SEMRSRBNEI SEMRSRWE SEMRSRWEI SEMRSRWNE SEMRSRWNEI SERSGBE SERSGBNE SERSGBNEI SERSGWE SERSGWEI SERSGWNE SERSGWNEI SERSRBE SERSRBEI SERSRBNE SERSRBNEI SERSRWE SERSRWEI SERSRWNE SERSRWNEI SESGBE SESGBEI SESGBNE SESGBNEI SESGWE SESGWEI SESGWNE SESGWNEI SESRBEI SESRBNEI SESRWEI SESRWNEI AS80 AS80I CV3 CV3D CV3DI CV3I CVEC15 CVEC15I CVT3GB3 CVT3GB3D CVT3GB3DI CVT3GB3I CVT3GB5D CVT3GW3 CVT3GW3D CVT3GW3DI CVT3GW3I CVT3GW5D CVT3RB3 CVT3RB3D CVT3RB3DI CVT3RB3I CVT3RW3 CVT3RW3D CVT3RW3DI CVT3RW3I EZ-2D EZ-2I EZ-2RI LM16 LM16I LM34D LM34DI LM36CH LM36ICH LM40 LM40I LM68D LM68DI LM80 LM80I LSC LSCI N4X2 N4X2I N4X4 N4X4I TG15 TG15I

Replaces Part Numbers

24D677

Technical Specifications

Voltage4.8V
Amp Hours800mAh
Capacity800mAh
Rate3.84Wh
Net Weight83g /2.93 oz
Gross Weight108g /3.81 oz
Approximate Weight108g /3.81 oz
Dimension 50.00 x 28.50 x 28.50mm

Product Highlights

  • Brand: Dual-Lite
  • Manufacturer: CS
  • Series: Standard
  • Color: White
  • Product Type: Ni-CD
  • Battery Type: Ni-CD
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

The charge LED on my CV3GEB is still red 30 minutes after I put the new battery in — is the cell dead?

No — replacement Ni-CD packs ship partially discharged, often below the voltage threshold the CV3GEB controller uses to confirm a healthy cell. The controller holds the red indicator until the pack charges above roughly 4.2V on the three-cell string. Leave the unit on mains for a full 24 hours and check again before drawing any conclusions about the cell.

My emergency light passed installation but failed the 90-minute duration test a week later — why?

A new Ni-CD pack typically needs one full charge-and-discharge cycle before it reaches rated capacity. On a first test, cells fresh from storage can deliver as little as 60–70% of their 800mAh rating, which cuts the duration short. Run one complete manual test cycle immediately after installation to condition the cells, then schedule your compliance test after that cycle completes.

The fault LED on the fitting won't clear even though I've confirmed the new 24D677 pack is seated and charging correctly — what resets it?

Some Dual-Lite fittings latch a fault LED in firmware and do not clear it automatically when the fault condition resolves. With the unit on mains power and confirmed charging, press and hold the test button for three seconds to trigger a manual reset sequence. If the LED remains after that, cut mains power to the fitting for 60 seconds, restore power, and allow the controller to re-initialise with the new pack voltage present.

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