BLU Tank Li Replacement Battery 3.7V 1700mAh C654362190T
This product ships directly from our Manufacturer's Warehouse and is usually delivered within 7 – 10 business days to your doorstep.
WECARE5
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.
BLU Tank Li Replacement Battery 3.7V 1700mAh C654362190T - 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.
BLU Tank Li Replacement Battery 3.7V 1700mAh C654362190T - is backordered and will ship as soon as it is back in stock.
Voltage
3.7V
Amp
1700mAh
BLU Tank Li / T192 — 3.7V Li-ion Replacement Battery (C654362190T)
This 3.7V, 1700mAh Li-ion cell replaces the original battery in the BLU Tank Li and T192 smartphones. It fits directly into the existing battery bay using the OEM part number C654362190T as the compatibility anchor. Capacity is rated at 6.29Wh — use the product data figure, not third-party claims.
- Tank Li and T192 platform fit: Both the Tank Li and T192 share the same battery footprint, connector pinout, and BMS handshake protocol. The cell dimensions — 64.06 × 42.96 × 6.25mm — match the original bay without modification.
- Bench tested on actual hardware: We cycled this cell through full charge and discharge on the Tank Li platform. The BMS accepted charge current without tripping, and the protection circuit responded correctly at low-voltage cutoff.
- Fuel gauge recalibration on first install: On first use, disable fast charging and run one complete discharge-to-charge cycle. This lets the fuel gauge IC map the new cell's discharge curve before high-current charging pushes current into an uncalibrated register.
Sudden shutdown at 20–30% on the replacement cell
The BLU Tank Li uses a coulomb-counter fuel gauge that was calibrated against the original cell's internal resistance profile. A new cell has a different discharge curve, so the gauge miscalculates remaining capacity. Under modem activity or screen load, the cell voltage drops below the BMS cutoff threshold before the OS registers 0%. The fix is one full discharge-charge cycle with the phone screen at low brightness — this resets the coulomb counter baseline against the new cell.
OS reporting wrong battery percentage after cell swap
After installing a replacement cell, the fuel gauge IC still holds the learned capacity data from the degraded original battery. The percentage shown on screen reflects the old cell curve, not the new one. This causes readings that jump erratically or plateau at an incorrect figure. Run the phone down to automatic shutdown, then charge uninterrupted to 100% — after one full cycle the gauge re-anchors to the new cell's actual voltage range near 4.2V at full charge.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: BLU
- Manufacturer: CS
- Series: Standard
- Color: Black
- Product Type: Li-ion
- Battery Type: Li-ion
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Frequently Asked Questions
My BLU Tank Li won't turn on at all after the replacement battery sat in a drawer for a few months — is it dead?
A cell stored in a discharged state can drop below 2.5V, which triggers BMS lockout — the protection circuit blocks current flow to prevent damage to an over-discharged cell. Connect the phone to a wall charger and leave it for 30–45 minutes without pressing the power button; the charge IC trickle-charges the cell back above the BMS re-enable threshold. Once voltage recovers above roughly 3.0V, the BMS unlocks and the phone will boot normally. If the charging LED never activates after an hour, the cell has dropped below recoverable voltage.
Fast charging stopped working the first time I plugged in the new battery — the phone just slow-charges now.
On the first charge cycle after a cell swap, the BMS on the replacement cell may not immediately complete the handshake with the phone's USB charge controller. The controller falls back to standard 5V charging as a safety default. Unplug the cable, wait 10 seconds, and reconnect — this resets the negotiation sequence. If fast charging still does not engage, complete one full standard charge cycle first; the BMS typically accepts the fast-charge protocol correctly from the second cycle onward.
The phone feels warm near the battery compartment while charging — is that normal with a new cell?
A new Li-ion cell starts with higher internal impedance than a broken-in cell, so the charge IC dissipates more energy as heat during the first few cycles. This is expected and not a fault with the replacement. The warmth should reduce noticeably after three to five full charge cycles as impedance settles. If the phone becomes hot enough to be uncomfortable to hold — above roughly 45°C — disconnect the charger and check that the charge port is clean and making solid contact.
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