Some descriptions of this Arris battery said it only backs up the phone. I took a chance and bought it anyway, and found they were wrong. It maintains Internet and WI-FI operation when the power is unplugged. The battery looks new and worked with no setup - just stick it in.
Verified purchase: Yes | Condition: New
It does what it says and keeps my phone and laptop internet connection working during a power outage.
Verified purchase: Yes | Condition: Pre-owned
Spectrum stopped using batteries in their business phone modems. The battery acts not only as a backup, but as a buffer for some voltage variation also.
Verified purchase: Yes | Condition: New
Works as described
Verified purchase: Yes | Condition: Pre-owned
A very high percentage of these replacement Chinese batteries do not hold a charge and are worthless. Buyer beware.
Verified purchase: Yes | Condition: Pre-owned
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