Rechargeable 6V GEL Battery COSI CSB-64.5 4.5Ah, sealed maintenance-free

Sealed rechargeable 6V GEL battery COSI CSB-64.5 4.5Ah is a compact, maintenance-free VRLA battery designed to provide reliable standby and cyclic power. Its GEL electrolyte and sealed construction prevent leakage and reduce evaporation, delivering consistent voltage for small UPS units, alarm systems, medical devices, and portable equipment that require a dependable 6V power source in a compact form factor.

Advantages

The GEL construction ensures stable performance across a range of temperatures and minimizes self-discharge during storage. As a sealed, maintenance-free unit it does not require regular topping up of electrolyte and operates leak-free in upright or slightly tilted positions. The battery’s compact dimensions and 4.5Ah rated capacity offer a balance between energy density and portability, suitable for equipment with limited installation space.

Suitable for

• Small UPS and emergency power supplies
• Alarm and security systems
• Portable medical and diagnostic devices
• Portable electronic equipment and measurement instruments

Key specifications

• Nominal voltage: 6 V
• Nominal capacity: 4.5 Ah (at 20-hour rate)
• Battery type: Valve-regulated lead-acid (VRLA) with GEL electrolyte
• Construction: Sealed, maintenance-free
• Recommended operating temperature range: typical for GEL batteries (check device requirements)
• Mounting: Upright or slight tilt; leak-proof design

How to use

Install the battery in the device compartment according to the device manufacturer’s instructions and polarity markings. For standby applications, connect to the charger or UPS charging circuit that is compatible with 6V VRLA/GEL batteries and follow recommended float charge voltage settings. For cyclic use, employ a charger with proper cyclic charge profile to maximize cycle life. Observe correct terminal connections, ensure secure mounting, and avoid short-circuiting the terminals.

Usage recommendations

Store and operate the battery within the temperature limits specified by your equipment; avoid prolonged exposure to temperatures outside the typical GEL range. Use chargers and charging profiles designed for 6V VRLA/GEL batteries, and perform periodic charging if the battery is kept in long-term storage to prevent deep discharge.