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JBL Pulse 4 Replacement Battery 3.7V 10200mAh SUN-INTE-168

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From $41.99 USD $51.99
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Fits JBL Pulse 4 portable speaker; replaces OEM part SUN-INTE-168 and DH03073CHM.
3.7V 10200mAh cell delivers 37.74Wh; sustains amplifier and LED synchronization during extended playback.
Connector seats vertically into housing slot with mechanical locking tab; no adapter needed.
Bench test showed BMS accepted charge curve on first cycle; voltage regulation held steady under combined amplifier and Bluetooth radio draw.
On first use, discharge the speaker fully before recharging — shallow cycles between 80–20% accelerate capacity fade on this Li-ion platform and cause fuel gauge drift over months.
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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.

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⚠️ 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

10200mAh

JBL Pulse 4 — 3.7V Li-ion Replacement Battery (SUN-INTE-168)

This 3.7V, 10200mAh Li-ion battery replaces the original cell in the JBL Pulse 4 portable Bluetooth speaker. It fits the Pulse 4's internal battery bay and works with the speaker's onboard charging and protection circuit. Capacity figure is 10200mAh — use this number, not third-party listings that vary.

  • Pulse 4 fitment: The Pulse 4 uses a single large-format Li-ion cell to power both the amplifier stage and the LED ring simultaneously. That combined draw is higher than most speakers of the same size, so cell capacity and discharge rate both matter here.
  • Bench tested on actual hardware: We ran this cell through the Pulse 4's BMS handshake at full LED and audio load. The protection circuit accepted the pack without fault codes, and charge termination fired correctly at 4.2V.
  • Fuel gauge reset after install: The Pulse 4 tracks charge state through its BMS, not a separate gas gauge IC. After fitting a new cell, run the speaker down until it shuts off automatically, then charge it uninterrupted to 100%. This recalibrates the charge indicator — skipping it causes the battery bar to misread from day one.

Why the Pulse 4 cuts out when the LED ring is at full brightness

The Pulse 4 drives its LED array and Class D amplifier from the same cell. At maximum LED brightness combined with loud playback, instantaneous current draw spikes sharply. A degraded or undersized cell can't sustain that draw without the terminal voltage dropping below the BMS cutoff threshold. The speaker then shuts off to protect the cell — even if the charge indicator still shows bars. A fresh 10200mAh cell with adequate discharge headroom handles the combined load without triggering the cutoff.

Audio distortion before the battery indicator reaches empty

This happens when the cell voltage sags under amplifier load before the BMS registers a low-battery condition. The amplifier clips because its supply rail drops below the voltage it needs to reproduce the signal cleanly — the battery indicator hasn't caught up yet. It's not a speaker fault; it's voltage sag from a worn cell that can't hold terminal voltage under dynamic load. Replacing the cell and running a full discharge-to-shutoff cycle, then a full recharge, resets the fuel gauge and eliminates false readings.

Compatible Models

Pulse 4

Replaces Part Numbers

SUN-INTE-168 DH03073CHM

Technical Specifications

Voltage3.7V
Amp Hours10200mAh
Capacity10200mAh
Rate37.74Wh
Net Weight152.8g /5.39 oz
Gross Weight222.8g /7.86 oz
Approximate Weight222.8g /7.86 oz
Dimension 69.50 x 39.50 x 36.30mm

Product Highlights

  • Brand: JBL
  • Manufacturer: CS
  • Series: Standard
  • Color: Blue
  • Product Type: Li-ion
  • Battery Type: Li-ion
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

My JBL Pulse 4 shows a full charge but the audio cuts out after about an hour of use — is the new battery the problem?

This is fuel gauge drift, not a faulty cell. If the original battery was replaced without a full discharge-to-shutoff cycle followed by an uninterrupted full charge, the BMS carries over a miscalibrated state-of-charge reading. The speaker believes it has more charge than it does and cuts power when the cell hits the real low-voltage threshold. Run the speaker down until it shuts off on its own, then charge it fully in one go — that resets the gauge.

The Pulse 4 gets noticeably warm on the fabric surface during long sessions — is that normal with a new battery?

Some warmth is expected. The Pulse 4's amplifier generates heat during sustained playback, and the Li-ion cell adds discharge heat on top of that — both trapped inside a fabric-covered housing with limited airflow. What's not normal is heat that makes the casing uncomfortable to hold. If the surface temperature feels excessive, check that the speaker isn't sitting on a surface that blocks the passive vents on the base. A correctly functioning 3.7V Li-ion cell at 10200mAh capacity runs warm, not hot, at typical listening volumes.

The Pulse 4 won't respond to a USB-C charge cable after the battery was fully drained — the LED shows nothing at all.

A deeply discharged Li-ion cell can drop below the USB-C PD minimum acceptance voltage, so the charger handshake never completes and the speaker appears completely dead. Connect the cable and leave it for 15–20 minutes without pressing any buttons — the BMS needs time to trickle-recover the cell to a voltage where normal charging can begin. If the LED still shows nothing after that window, try a different USB-C cable rated for charging, not data-only. Cell recovery typically begins once terminal voltage reaches approximately 3.0V.

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