Power reliability for Cisco IP Phone 8821 users. The BTI CP-BATT-8821-BTI is a 3.8V, 2000mAh Li-ion battery designed as a precise replacement for the Cisco IP Phone 8821, delivering steady performance when you need it most.
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Brand: BATTERY TECHNOLOGY — trusted power solutions for business devices.
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Model: CP-BATT-8821-BTI — engineered as a direct-fit replacement for the Cisco 8821 family.
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Voltage: 3.8V Li-ion cell tailored to the Cisco 8821 power profile.
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Capacity: 2000mAh to extend talk time and standby between charges.
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Energy: 7.6Wh, providing efficient, reliable power delivery for daily professional use.
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Chemistry: Lithium-ion (Li-ion) chemistry for stable performance and rechargeability.
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Compatibility: Designed for CP-BATT-8821, with support for GP-S10-374192-010H and 35-100138-03 references; compatible with Cisco IP Phone 8821.
This replacement battery is built to keep your Cisco 8821 phone powered through long calls, busy workdays, and service windows. Its Li-ion chemistry offers consistent voltage delivery and reliable cycling, helping maintain device performance without frequent recharges. The drop-in design means quick, tool-free installation for a seamless swap, minimizing downtime in high-demand environments like contact centers and field services.
Specs
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Voltage: 3.8V
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Capacity: 2000mAh
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Energy: 7.6Wh
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Chemistry: Lithium-ion (Li-ion)
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Model: CP-BATT-8821-BTI
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Compatibility: Cisco IP Phone 8821; CP-BATT-8821; GP-S10-374192-010H; 35-100138-03
FAQ
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Q: What devices is this battery compatible with?
A: It is designed as a direct replacement for the Cisco IP Phone 8821 and is compatible with CP-BATT-8821 and related references GP-S10-374192-010H and 35-100138-03.
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Q: What are the key electrical specs?
A: 3.8V, 2000mAh capacity, and 7.6Wh energy, with Li-ion chemistry for reliable rechargeability.
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Q: Is this a plug-and-play replacement?
A: Yes, the CP-BATT-8821-BTI is designed for straightforward installation on the Cisco 8821 series without requiring additional hardware.
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Q: How should I care for the battery to maximize life?
A: Follow standard Li-ion battery practices: avoid extreme heat, don’t fully discharge before charging, and use a compatible charger to maintain optimal lifespan.
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Q: Is BATTERY TECHNOLOGY a trustworthy brand for replacements?
A: BATTERY TECHNOLOGY specializes in replacement power solutions for business devices, delivering purpose-built batteries that align with device specifications and reliability expectations.
