Key Features
-
2900mAh Balanced Capacity: Provides longer runtime than standard 2600mAh cells for all-day lighting needs.
-
10A Continuous Discharge (CDR): Optimized for medium to low-power devices, offering smooth and reliable energy output.
-
20A Pulse Discharge: Handles momentary high-load demands for device startup or short bursts.
-
Flat Top Design: Widely compatible with mainstream flashlights, headlamps, solar lights, and battery holders.
-
Convenient 2-Pack: Ideal for multi-cell devices or keeping a spare ready.
Parameters
-
Brand: DMEGC
-
Model: 18650-29E
-
Chemistry: Lithium-Ion (Li-ion)
-
Capacity: 2900mAh
-
Nominal Voltage: 3.6V / 3.7V
-
Max Charge Voltage: 4.20V ± 0.05V
-
Discharge Cut-off Voltage: 2.50V
-
Max Continuous Discharge Current (CDR): 10A
-
Max Pulse Discharge Current: 20A
-
Top: Flat Top
-
Protection: Unprotected (Bare Cell)
-
Weight: Approx. 46-48g / cell
Applications
-
Medium Power Flashlights & Headlamps: Ideal for 200-800 lumen everyday lighting, night running, and camping.
-
Solar Lights / Garden Lights: Best matched scenario. The large capacity and moderate discharge rate are perfect for solar lighting systems.
-
Smart Doorbells / Smart Locks: Compatible with certain 18650-powered smart home devices, providing months of standby time.
-
Low-Power Electronics: Vintage radios, low-power toys, small RC cars, etc.
-
⚠️ NOT Suitable for: High-power tactical flashlights (>1200 lumens), heavy-duty power tools (drills), or high-power Bluetooth speakers requiring >15A continuous current.
FAQ
Q: What is the difference between 10A CDR and 20A Pulse?
A: 10A CDR means the battery can safely and continuously deliver 10 amps, ideal for medium-to-low power devices like flashlights and headlamps. 20A Pulse means it can instantly deliver 20 amps for short bursts, such as device startup.
Q: Can I use this battery for a high-power tactical flashlight?
A: Not recommended. High-power flashlights (>1200 lumens) often require 15A-25A continuous current. Using the 10A 29E may result in insufficient brightness or trigger low-voltage protection.
Q: How does it compare to the 26E (2600mAh) or 35E (3500mAh)?
A: The 29E is an economical mid-to-high capacity cell: 300mAh more than the 26E, with a price between the 26E and 35E. It's ideal if you need longer runtime than 2600mAh without paying for 3500mAh.
Q: Does this battery have a protection circuit?
A: No. This is a bare cell. It is recommended to use a device or charger with built-in over-charge/over-discharge protection.
Q: Can I use this battery in my smart doorbell?
A: Please confirm that your smart doorbell supports 18650 batteries and that the compartment fits flat-top cells. If compatible, the 2900mAh capacity provides excellent standby time.
