TCL Y910 Replacement Battery 3.8V 3400mAh TLp034B2
Check that your old battery model number and device model to match our description. This makes sure they work together.
We ship your order same day if you buy it before 4 PM EST.
TCL Y910 Replacement Battery 3.8V 3400mAh TLp034B2 - is backordered and will ship as soon as it is back in stock.
Let customers speak for us
Send Your Battery Photo
Expert Technician Help
Snap a photo or video of your battery and send it to us. We'll identify the exact replacement—fast and hassle-free. Our team has helped thousands of customers find the right battery quickly and easily.
POST YOUR BATTERY IMAGE
Product & Solutions Expert
✉ sales@batteryweb.com
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.
TCL Y910 Replacement Battery 3.8V 3400mAh TLp034B2 - is backordered and will ship as soon as it is back in stock.
Voltage
3.8V
Amp
3400mAh
TCL Y910 Series — 3.8V Li-Polymer Replacement Battery (TLp034B2)
This 3.8V, 3400mAh lithium-polymer cell replaces the original battery in the TCL Y910, Y910T, and N3Y910T smartphones. It matches the OEM part numbers TLp034B2 and TLp034B1. Physical dimensions are 95.35 × 57.17 × 4.19mm — measure your existing cell before ordering if you are unsure which revision is fitted.
- Y910 / Y910T / N3Y910T fit: All three models share the same battery bay dimensions, connector pinout, and BMS communication protocol. A single cell covers the full variant range without modification.
- Bench tested on actual hardware: We ran this cell through charge and discharge on the Y910 platform. The BMS handshake cleared without error codes, and the charge IC accepted the cell at both standard and fast-charge rates after one full conditioning cycle.
- Fuel gauge recalibration on first use: On first use after installation, disable fast charging for one complete discharge-charge cycle. This lets the fuel gauge IC map the new cell's discharge curve before high-current charging pushes current into an uncalibrated state — preventing erratic percentage readings from the first week of use.
Sudden shutdown at 20–30% on the Y910 after a cell swap
The Y910's fuel gauge IC stores a discharge curve from the original cell. When a new cell with different internal resistance arrives, the IC miscalculates the voltage floor. Under high-load moments — mobile data, screen-on bursts, GPS — the cell voltage dips below what the SoC tolerates before the gauge reads zero. The phone cuts out even though the displayed percentage looks safe. One full discharge-to-shutdown followed by an uninterrupted charge to 100% forces the coulomb counter to re-anchor to the new cell. After that cycle, shutdowns at false-high percentages stop.
USB fast charge not activating on the first cycle after replacement
On the first charge after installation, the charge IC may fall back to 5V standard charging and refuse to negotiate the faster charging profile. This happens because the BMS on a fresh cell has not yet passed the temperature and impedance thresholds the charge IC checks before unlocking higher current. It is not a fault with the cable or charger. Run one complete standard-rate charge to 100%, let the phone sit for five minutes off-charge, then reconnect — the fast-charge handshake should trigger once the BMS has logged a full baseline cycle.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: TCL
- Manufacturer: CS
- Series: X-Longer
- Color: Black
- Product Type: Li-Polymer
- Battery Type: Li-Polymer
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Frequently Asked Questions
My TCL Y910 keeps shutting off at around 25% after I put in the new battery — is something wrong with the cell?
Nothing is wrong with the cell. The fuel gauge IC on the Y910 is still running the discharge curve it mapped to your worn original battery, so it misjudges the voltage floor of the new cell under screen or modem load. Run one full discharge — let the phone shut itself off — then charge uninterrupted to 100% without fast charging enabled. That single cycle re-anchors the coulomb counter to the new cell and the early shutdowns stop.
The battery percentage on my Y910 is jumping around erratically — it just skipped from 60% down to 41% in two minutes.
This is the fuel gauge IC recalibrating against a cell it has never seen before. The coulomb counter is interpolating between reference points that were set on the old, degraded cell, so readings are unreliable until it builds a new baseline. Allow two full discharge-charge cycles at standard charge rate with the screen used normally during discharge. By the end of the second cycle the percentage reporting stabilises and the jumps disappear.
My Y910 won't power on at all after the replacement battery sat uninstalled in a drawer for a few months — is it dead?
Lithium-polymer cells self-discharge in storage, and if the cell dropped below 2.5V the BMS trips into lockout to prevent damage. The phone will not respond to the power button and may show nothing on screen even when plugged in. Connect it to a wall charger — not a PC port — and leave it for 20 to 30 minutes before attempting to power on. The charge IC will trickle current into the cell until the BMS sees voltage above the recovery threshold, typically around 3.0V, at which point normal charging resumes.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
