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SkyBell Slim Line 3.7V Replacement Battery 320mAh Li-Polymer

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From $23.99 USD $29.99
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Fits SkyBell Slim Line Mounting Bracket doorbells; replaces OEM part PH422536P.
3.7V, 320mAh lithium-polymer cell powers video, audio, and motion detection continuously.
Connector slides into vertical slot with locking tab; verify orientation before seating.
Bench test showed stable 3.7V output under IR LED and WiFi burst loads.
On first boot, power cycle the doorbell once through the SkyBell app — firmware must register the new cell before motion recording logs correctly to cloud.
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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

Delivery and Shipping

🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

Disclaimer

⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

Voltage

3.7V

Amp

320mAh

SkyBell Slim Line / Trim Plus / SBHD10 — 3.7V Li-Polymer Replacement Battery (PH422536P)

This 3.7V, 320mAh lithium-polymer cell replaces OEM part PH422536P in SkyBell Slim Line, Trim Plus, and SBHD10 video doorbells. It powers the camera, motion sensor, two-way audio, and Wi-Fi radio. Physical dimensions are 37.50 × 25.00 × 4.00mm — confirm these against your existing cell before installing.

  • Slim Line, Trim Plus, and SBHD10 compatibility: All three models share the same battery bay geometry, connector pinout, and 3.7V voltage rail. The BMS handshake is identical across this bracket family, so one cell fits all three without modification.
  • Bench tested on actual hardware: We cycled this cell through SkyBell's combined IR-LED and Wi-Fi radio draw. The BMS held stable through motion-trigger current spikes and did not false-trip during back-to-back recording events.
  • First-install power cycle requirement: After fitting the new cell, power cycle the doorbell once through the SkyBell app. The firmware must re-register the cell before motion events log correctly to cloud storage — skipping this step causes missed clips on early triggers.

Why the SBHD10 drops offline in the app after a battery swap

Swapping the cell clears the doorbell's active session token. The unit reconnects to Wi-Fi but the SkyBell app does not automatically re-authenticate the device. This shows as "offline" or "unavailable" in the app even though the camera's LED may appear active. Open the app, navigate to device settings, and force a reconnect — the doorbell re-registers and resumes live view within about 30 seconds.

App showing 0% or a frozen charge percentage after install

SkyBell's charge indicator reads voltage thresholds, not a fuel-gauge IC. A new cell sitting near full charge can read 0% or display the previous cell's last-known value until the firmware calibrates. Run one full charge cycle through the mounting bracket's charge contacts — once the cell reaches 4.2V and the charger cuts off, the indicator resets and tracks accurately from that point forward.

Compatible Models

Slim Line Mounting Bracket Trim Plus SBHD10

Replaces Part Numbers

PH422536P

Technical Specifications

Voltage3.7V
Amp Hours320mAh
Capacity320mAh
Rate1.18Wh
Net Weight7g /0.25 oz
Gross Weight32g /1.13 oz
Approximate Weight32g /1.13 oz
Dimension 37.50 x 25.00 x 4.00mm

Product Highlights

  • Brand: SkyBell
  • Manufacturer: CS
  • Series: Standard
  • Color: Black
  • Product Type: Li-Polymer
  • Battery Type: Li-Polymer
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

My SkyBell Slim Line stops recording mid-clip — is the new battery tripping out?

Mid-clip cutoffs on the Slim Line happen when a Wi-Fi reconnect attempt fires during recording — the combined radio and processor current spike briefly exceeds the BMS threshold and the cell drops off. Move the doorbell closer to your router or add a Wi-Fi extender to reduce reconnect events. A sustained signal above -67 dBm eliminates most of these trips.

Night vision cuts out a few hours after dark and the camera goes to sleep — what's causing that?

Sustained IR-LED draw overnight pulls more current than standby or daytime operation. If the cell voltage sags below the BMS re-entry threshold — around 3.0V on this chemistry — the unit sleeps and won't wake until the cell recovers slightly. Ensure the mounting bracket's charge contacts are clean and making firm contact so the cell stays topped up during low-draw periods between motion events.

My SkyBell shows motion alerts in the app but no video clip is saved — the camera itself seems fine.

This is a firmware registration issue, not a recording fault. After a battery swap, the motion event fires and the IR LEDs trigger, but if the firmware hasn't re-registered the new cell, the clip fails to write to cloud storage. Power cycle the doorbell once through the SkyBell app — go to device settings, disconnect, then reconnect the unit — and the next motion event will log a complete clip.

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