PowNode High Capacity Square Dry Battery, Stable Constant Voltage Long Lasting Battery, Replacement Power for Multimeter Smoke Detector Guitar Microphone Remote Control

Brand:PowNode

Type:Batteries

Core Material: High-Density Stable Voltage Energy Storage Raw Material

Outer Shell: Glossy White Hard Plastic Sealed Anti-Leakage Housing

Terminals: Polished Anti-Rust High-Conductivity Metal Positive & Negative Contacts

Feature: Ultra-Low Self-Discharge, Full Anti-Leakage Sealed Structure, Wide Device Compatibility

Date First Available:June 17,2026

• High-Density Energy Storage Core & Consistent Stable Voltage
  
  
  Premium compact energy storage raw materials deliver large effective capacity, maintaining stable 9V voltage throughout the whole discharge cycle without sudden voltage drop during long-time use. Low internal resistance ensures smooth steady current supply for high-precision sensitive equipment, avoiding signal flicker, equipment shutdown or abnormal data reading caused by unstable power output. Long endurance greatly reduces frequent battery replacement frequency.
• Fully Sealed Anti-Leakage Rigid Protective Shell
  
  
  Smooth glossy white hard plastic outer shell with integrated sealed isolation layer inside, effectively blocking electrolyte leakage to prevent corrosion damage to circuit boards and metal contacts of expensive devices. The shell surface is stain-resistant and easy to wipe clean; the whole housing resists extrusion and impact during transportation and long-term storage without deformation. Clear +/- polarity marks are printed on the surface for quick, error-free installation.
• High-Conductivity Polished Metal Positive & Negative Terminals
  
  
  Precision polished metal anode and cathode contacts on the top, excellent electrical conductivity, tight fit with all standard 9V battery compartment slots. No loose contact, power cut or poor conduction when equipment vibrates or moves. The metal terminals are anti-rust, maintaining stable conductive performance even after long-term standby storage.
• Central Front Shell Smooth Circuit-Style Letter Decorative Graphic
  
  
  Unique circuit dot icon integrated with thick streamlined letter artwork decorates the front center of the battery shell. The surface marking stays jet-black and sharp after long-term storage, friction and temperature fluctuation, without fading, peeling or blurring, presenting neat minimalist industrial appearance.
• Multi-Scenario Universal Replacement Power Source
  
  
  Perfectly compatible with multimeters, smoke fire detectors, carbon monoxide alarms, wireless microphones, electric guitars, remote control toys, walkie-talkies, blood pressure monitors, portable testing instruments and portable audio equipment. Ideal for home daily standby power, studio audio equipment backup, electrical maintenance tool power supply and emergency safety device power replacement.