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Nokia HE317 Replacement Battery for 7 3.85V 3000mAh

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From $26.99 USD $33.99
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Fits Nokia 7, 7 Premium Edition, and dual SIM variants; replaces OEM part HE317.
3.85V, 3000mAh Li-Polymer cell delivers the original capacity for daily calls, messaging, and app use.
Connector slides into the factory slot with a single locking tab; orientation marked on both battery and phone housing.
We bench-tested the HE317 cell against a stock Nokia 7 unit; BMS accepted the new pack on first insertion with no fault codes.
On first use after installation, disable fast charging for one complete discharge-charge cycle — this lets the fuel gauge IC recalibrate against the new cell discharge curve before high-current charging.
Delivery time

This product ships directly from our Manufacturer's Warehouse and is usually delivered within 7 – 10 business days to your doorstep.

Discount: As a thank you for your patience, enjoy 5% off on your order
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Fresh Battery, Worth the Wait

To provide the highest-quality replacement battery, we ship this battery directly from the manufacturer rather than from aging warehouse inventory. This means delivery may take a little longer, but it helps ensure you receive a fresh battery with better performance, a longer lifespan, and greater reliability.

Estimated delivery: 7–10 business days
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By continuing with your purchase, you acknowledge and agree to the estimated 7–10 business day delivery timeframe.
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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

3.85V

Amp

3000mAh

Nokia 7 Series — 3.85V Li-Polymer Replacement Battery (HE317)

This is a 3.85V, 3000mAh (11.55Wh) Li-Polymer replacement battery for the Nokia 7, 7 Premium Edition, 7 Premium Edition Dual SIM, and 7 Premium Edition Dual SIM TD-LTE. It uses OEM part number HE317 and matches the original cell's voltage, capacity, and connector pinout. Dimensions are 76.86 × 62.20 × 3.58mm — measure your existing cell before ordering if you are unsure of your variant.

  • Nokia 7 and 7 Premium Edition compatibility: These variants share the same battery bay geometry, flex connector, and BMS handshake protocol. A single HE317 cell covers all listed models without modification.
  • Bench tested on actual hardware: We cycled this cell through charge and discharge on Nokia 7 hardware. The BMS accepted the cell, charge termination triggered correctly at 4.35V, and protection cutoffs fired as expected under simulated load.
  • Fuel gauge recalibration on first use: After installation, disable fast charging and run one full discharge-charge cycle at standard current. This lets the fuel gauge IC map its coulomb counter against the new cell's discharge curve before any high-current session pushes current into an uncalibrated state.

Sudden shutdown at 20–30% on the Nokia 7 after a cell swap

The Nokia 7's fuel gauge IC holds a discharge curve calibrated to the original cell. A new cell with a slightly different voltage-to-capacity profile causes the IC to misjudge remaining charge. Under modem TX bursts or screen-on loads, the cell voltage briefly dips below the BMS cutoff threshold — the phone shuts off even though the reported percentage looks safe. One complete slow discharge to 0% followed by a full charge to 100% resets the coulomb counter and corrects the curve. After that cycle, reported percentage and actual cutoff voltage align.

USB fast charge not activating on the first cycle after replacement

On the first charge after a cell swap, the Nokia 7's charge IC may default to trickle or standard 5V charging rather than engaging the fast charge protocol. This happens because the BMS on a new cell starts in a conservative state until it has confirmed cell voltage and temperature are within the fast-charge window. Plug in, leave the phone idle for 10–15 minutes so the charge IC completes its initial cell health check, then unplug and reconnect. Fast charge should activate once the cell reads above 3.0V and the temperature check passes.

Compatible Models

7 7 Premium Edition 7 Premium Edition Dual SIM 7 Premium Edition Dual SIM TD-LTE HMD C1N

Replaces Part Numbers

HE317

Technical Specifications

Voltage3.85V
Amp Hours3000mAh
Capacity3000mAh
Rate11.55Wh
Net Weight40.2g /1.42 oz
Gross Weight75g /2.65 oz
Approximate Weight75g /2.65 oz
Dimension 76.86 x 62.20 x 3.58mm

Product Highlights

  • Brand: Nokia
  • 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

Why does my Nokia 7 show the wrong battery percentage after fitting the HE317 replacement?

The fuel gauge IC on the Nokia 7 stores a discharge curve matched to the original cell. A new cell has a slightly different voltage-to-capacity profile, so the IC reports an inaccurate state of charge until it recalibrates. Run one full discharge — screen on, no charging — until the phone shuts itself off, then charge uninterrupted to 100% without interruption. After that single cycle, the coulomb counter resets and percentage readings stabilise.

My Nokia 7 gets noticeably warm near the battery during the first few charges with the new cell — is that normal?

A new high-impedance Li-Polymer cell generates more heat during the initial charge cycles than a broken-in cell does. The charge IC has to work against higher internal resistance until the cell's electrolyte settles. Keep the phone on a hard flat surface during those first two or three charges so heat can dissipate freely, and avoid charging inside a case until the warmth reduces on its own — typically by the third cycle.

The Nokia 7 won't power on at all after the HE317 sat in a drawer for several months before I installed it — how do I recover it?

If cell voltage dropped below roughly 2.5V during storage, the BMS locks the cell out to prevent damage and the phone will not respond to a normal power-on or charge attempt. Connect to a wall charger — not a PC USB port — and leave it for 20–30 minutes without touching it. The charge IC trickle-charges the cell back above the BMS recovery threshold; once voltage crosses approximately 3.0V the BMS unlocks and normal charging resumes.

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