ZTE Blade C320 Li3712T42P3h634445 Replacement Battery 3.7V 1200mAh
This product ships directly from our Manufacturer’s Warehouse and is usually delivered within 5 – 8 business days to your doorstep.
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ZTE Blade C320 Li3712T42P3h634445 Replacement Battery 3.7V 1200mAh - is backordered and will ship as soon as it is back in stock.
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Battery Care Tips
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
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
⚠️ 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.
ZTE Blade C320 Li3712T42P3h634445 Replacement Battery 3.7V 1200mAh - is backordered and will ship as soon as it is back in stock.
Voltage
3.7V
Amp
1200mAh
ZTE Blade C320 / V815W / T815 — 3.7V Li-ion Replacement Battery (Li3712T42P3h634445)
This is a 3.7V, 1200mAh Li-ion cell for the ZTE Blade C320, V815W, and T815 smartphones. It replaces OEM part Li3712T42P3h634445 directly. The cell measures 63.05 × 43.87 × 4.30mm and fits the original battery compartment.
- Blade C320 / V815W / T815 compatibility: These three models share the same battery bay dimensions, connector pinout, and 3.7V nominal voltage rail. One cell covers all three without modification.
- Bench tested on actual hardware: We cycled this cell through charge and discharge on the Blade C320 platform. The BMS communicated correctly with the charge IC on all test units, with no premature cutoff or overcharge events recorded.
- First-cycle calibration tip: On first use after installation, disable fast charging and run one full discharge-to-charge cycle. This lets the fuel gauge IC map the new cell's discharge curve before high-current charging begins against an uncalibrated counter.
Sudden shutdown at 20–30% on the Blade C320
Budget-tier Li-ion cells age unevenly at the chemistry level. The internal impedance rises while the fuel gauge IC still references the original low-impedance discharge curve. Under modem or screen load, the cell voltage collapses faster than the gauge predicts — the phone hits the hardware undervoltage threshold and shuts off while the OS still shows charge remaining. A full discharge-to-charge cycle after installation lets the coulomb counter recalibrate to the new cell's actual voltage-to-capacity curve, which reduces these cliff shutdowns significantly.
Phone reports wrong battery percentage after cell swap
The fuel gauge IC on the Blade C320 stores a learned discharge profile from the old cell. When a new cell goes in, that stored curve no longer matches actual cell behaviour, so percentage readouts jump or stall. The fix is a single full calibration cycle: charge to 100%, let the phone discharge naturally to automatic shutdown, then charge back to 100% without interruption. After that cycle, the gauge re-anchors to the new cell and percentage reporting stabilises.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: ZTE
- Manufacturer: CS
- Series: X-Longer
- Color: Black
- Product Type: Li-ion
- Battery Type: Li-ion
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Frequently Asked Questions
My ZTE Blade C320 shuts off at around 25% battery — will a new cell fix this?
Yes, this is the most common failure on aged Blade C320 cells. High internal impedance in the old cell causes voltage to collapse under load faster than the fuel gauge predicts, triggering a hardware shutdown before the OS reads zero. A new cell removes the impedance problem, but run one full discharge-to-charge cycle first so the coulomb counter recalibrates to the new cell's curve — otherwise the early shutdowns can persist on a fresh cell.
The Blade C320 won't power on at all after the replacement battery sat in a drawer for months — is it dead?
Probably not dead — most likely a BMS lockout. Li-ion cells that self-discharge below approximately 2.5V per cell trigger the protection circuit, which blocks all output to prevent damage. Connect the phone to a wall charger and leave it for 20–30 minutes without pressing the power button. The charge IC trickle-charges the cell back above the BMS recovery threshold, typically around 2.8–3.0V, at which point the protection circuit resets and the phone will power on normally.
Fast charging stopped working on the Blade C320 after I installed a replacement battery — what's happening?
On the first charge cycle after a cell swap, the phone's charge IC sometimes defaults to standard charging while it handshakes with the new BMS. This is normal. Charge to 100% and let the phone complete a full discharge, then plug in again — fast charge protocol acceptance typically restores on the second or third cycle once the BMS and charge IC have exchanged enough data. If it still doesn't engage after three cycles, check that the USB cable supports the required current spec for the Blade C320's charge rate.
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