25.2V 4.9AH Underwater Walkie-Talkie Lithium Battery

25.2V 4.9AH Underwater Walkie-Talkie Lithium Battery

Suitable for underwater walkie-talkies and underwater equipment

Product Number: 42DZ001-04
Rated voltage: 25.2V
Rated capacity: 4900mAh
Battery size: 165*76*30mm
Charging temperature: 0 – 45℃
Discharge temperature: -20 to 60 degrees Celsius
Application field: Instrumentation and meters

Technical Specifications of 25.2V 4.9Ah Battery Pack

Project Number: 42DZ001-04
Cell model: 21700/3.6V/4.9Ah
Battery specifications: 21700 – 7S1P / 25.2V / 4.9Ah
Rated voltage: 25.2V
Rated capacity: 4.9Ah
Charging voltage: 29.4V
Charging current: ≤ 2.45A
Discharge current: 5A
Instantaneous discharge current: 6A – 12A
Discharge cut-off voltage: 19.25V
Internal resistance of the finished product: ≤ 200 mΩ
Battery weight: 550g
Product dimensions: 165*76*30mm (Maximum)
Charging temperature: 0 – 45℃
Discharge temperature: -20 to 60 degrees Celsius
Storage temperature: -20 to 45 degrees Celsius
Temperature protection: 65℃ ± 5℃
Battery housing: PVC bracket
Lithium battery protection: short circuit protection, overcharge protection, overdischarge protection, overcurrent protection, temperature protection, battery level meter, SMBUS communication, etc.
Application fields: Underwater walkie-talkies, underwater equipment

Key Features & Advantages

Excellent Waterproof & Sealing: Designed specifically for underwater environments, featuring robust PVC bracket housing to ensure stable operation in high-humidity and subsea conditions.
Advanced Smart BMS Protection: Built-in sophisticated Battery Management System (BMS) with short circuit, overcharge, overdischarge, overcurrent, and temperature protection. Features SMBUS communication for precise data transmission and battery health monitoring.
Premium 21700 Li-ion Cells: Utilizing high-quality 21700 battery cells (3.6V 4.9Ah) configured in 7S1P, offering higher energy density, lower internal resistance, and a longer lifecycle compared to traditional cells.

Applications for Our Custom Waterproof Batteries

Underwater Walkie-Talkies

Marine Instrumentation

ROV & Underwater Drones

Subsea Lighting Systems

OEM & ODM Custom Waterproof Battery Solutions

Can’t find the exact battery size for your underwater device? KRL Power offers professional customization services. From adjusting the voltage and capacity to redesigning the battery dimensions and changing connector types, our engineering team will work closely with you to design the perfect power solution for your project.