6V 4.5 AMP HR RECHARGEABLE BATTERY

6V 4.5Ah Rechargeable Battery

Does your cordless phone base station, emergency light, or security system lose power too quickly? The 6V 4.5 AMP HR Rechargeable Battery is a high-capacity, sealed lead-acid (SLA) battery designed for reliable backup and everyday power. With 4.5 amp-hours (Ah) of capacity, it keeps your devices running longer than standard 2.5Ah or 3.2Ah batteries. It’s maintenance-free, spill-proof, and can be mounted in any position. Whether you need a replacement for your home phone system or a backup for a solar setup, this battery delivers consistent, dependable power.

How It Works

This rechargeable battery stores energy and releases it as 6 volts DC. It’s designed for deep-cycle applications – meaning it can be discharged and recharged hundreds of times without losing capacity. Simply connect the battery to your device using the included F1 or F2 terminals (compatible with most cordless phone bases, alarm systems, and UPS units). When the device is plugged into AC power, it trickle-charges the battery automatically. During a power outage, the battery seamlessly takes over. You can also charge it with a compatible 6V solar panel or a dedicated SLA charger. For a complete power backup solution for your office communication gear, check out our selection of corded headsets and accessories at Find Headsets.

Compatibility & Design

This 6V 4.5Ah battery replaces many common models: UB645, BP4.5-6, ES4.5-6, and CB645. It works with cordless phone base stations (AT&T, Panasonic, VTech, RCA), emergency exit lights, backup security systems, garage door openers, and small UPS units. The battery dimensions are approximately 2.8 x 1.9 x 4.0 inches – a standard size that fits most compartments. It uses F1 (0.187-inch) quick-connect terminals. The sealed ABS case is non-spillable and UL-certified for safety. Operating temperature range is -15°C to 50°C.

Why Choose This Product

Original equipment batteries often come with lower capacity (3.2Ah or less). Upgrading to a 4.5Ah battery gives you up to 40% more talk time and standby hours. It’s also a money-saver: buying a generic high-capacity battery costs less than a brand-name replacement but performs just as well. The maintenance-free design means you never add water or check acid levels. And because it’s rechargeable, you’re keeping disposable batteries out of landfills. For home offices, this battery ensures your cordless phone keeps working during blackouts – a small investment for peace of mind.

Final Suggestion

If your cordless phone base shows a “low battery” warning or shuts down quickly during outages, replace the old battery with this 6V 4.5Ah model. Install it in minutes, and enjoy longer backup time. Keep a spare on hand for emergency lights or security systems too.