HTC Smart TOPA160 Replacement Battery 3.7V 2200mAh
This product ships directly from our Manufacturer’s Warehouse and is usually delivered within 5 – 8 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.
HTC Smart TOPA160 Replacement Battery 3.7V 2200mAh - 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.
HTC Smart TOPA160 Replacement Battery 3.7V 2200mAh - is backordered and will ship as soon as it is back in stock.
Voltage
3.7V
Amp
2200mAh
HTC Smart / Rome Series — 3.7V Li-ion Replacement Battery (TOPA160)
This 3.7V, 2200mAh Li-ion battery replaces the original cell in the HTC Smart, Rome, Rome 100, and F3188. OEM part numbers are TOPA160 and 35H00125-11M. Fit this when the existing battery no longer holds a charge or the phone has stopped powering on entirely.
- Smart and Rome platform fit: The Smart, Rome, and Rome 100 share the same battery bay dimensions and connector pinout. All run on a 3.7V single-cell Li-ion rail with identical BMS handshake logic, so one cell covers the full group without modification.
- Bench tested on actual hardware: We ran this cell through a full charge cycle on the HTC Smart. The BMS accepted the cell without fault flags, charge termination triggered correctly at 4.2V, and protection cutoff engaged as expected at the low-voltage threshold.
- Fuel gauge recalibration on first use: After fitting this cell, disable any fast-charge adapter and run one complete discharge down to auto-shutdown, then charge to 100% on a standard 5V/1A supply. This lets the fuel gauge IC map its coulomb counter against the new cell's discharge curve before high-current charging begins.
Why the HTC Smart shuts down suddenly at 20–30% after a cell swap
A new cell has a steeper voltage-drop curve than the degraded cell the fuel gauge IC was originally calibrated to. When the modem fires a high-current burst — during a call or data sync — voltage sags faster than the IC predicts. The phone interprets this sag as a critically low cell and triggers an emergency shutdown, even though the reported percentage shows charge remaining. One full discharge-to-shutdown cycle followed by a complete charge teaches the IC where the real voltage cliff sits on the new cell.
Phone warm near the battery compartment during the first charge
A fresh cell typically arrives with higher internal impedance than a conditioned one. In the first charge cycle the charge IC pushes current into this higher resistance, which generates more heat than normal until the cell's impedance settles. This is expected behaviour during the first one or two cycles and should reduce noticeably after that. If the compartment stays hot beyond the second full charge, check that the charger output is no higher than 5V/1A — higher voltages stress the charge IC on this platform.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: HTC
- Manufacturer: CS
- Series: Extension
- Color: Black
- Product Type: Li-ion
- Battery Type: Li-ion
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Frequently Asked Questions
The HTC Smart won't turn on at all after sitting in a drawer for months — is the battery dead?
Likely a BMS lockout. When a Li-ion cell drops below roughly 2.5V from prolonged storage, the protection circuit locks out to prevent cell damage and the phone shows no signs of life. Connect it to a 5V/1A charger and leave it for 20–30 minutes — the charge IC trickle-charges the cell back above the lockout threshold before switching to normal charge current. If the charge indicator light comes on within that window, the cell is recovering; if nothing appears after 40 minutes, the cell has dropped too low to recover and needs replacement.
The battery percentage on my HTC Smart jumps around erratically — it shows 45%, then suddenly 12%, then back up to 38%.
The fuel gauge IC is still running its coulomb counter against the old cell's discharge profile. After fitting a replacement cell, the IC has no accurate reference point for the new cell's voltage-to-capacity curve, so percentage readings are unreliable until it recalibrates. Run one full cycle — discharge the phone normally until it shuts itself off, then charge uninterrupted to 100% on a standard 5V/1A adapter without removing the cable early. Percentage stability should improve significantly after that single cycle.
My HTC Smart charges fine on a standard charger but won't fast-charge on the first cycle after fitting the new battery.
On the first cycle, the BMS on a new cell is conservative — it limits accepted charge current until it has completed one handshake cycle with the phone's charge IC. Some proprietary charge protocols are only accepted after that initial cycle completes. Finish one full standard charge at 5V/1A, let the phone discharge normally, then charge again — fast-charge negotiation should resume from the second cycle onward.
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.
Related Products
Engineered for Performance. Built to Last.
Check out our top-rated selection of reliable products built to last. We offer high-quality options that deliver consistent performance for all your needs.
-
Up to 21% offNew arrival
BatteryWeb
Verizon GzOne C731 ROCK Replacement Battery BTR731B 3.7V 1200mAh
0.12 lb
Sale priceFrom $22.99 USD Regular price $28.99Unit priceIn stock (330 units) -
-
Up to 21% offNew arrival
BatteryWeb
Nokia 8820 BL-6U Replacement Battery 3.7V 750mAh
0.09 lb
Sale priceFrom $22.99 USD Regular price $28.99Unit priceIn stock (12 units) -
-
Sold outUp to 21% off
BatteryWeb
AB503442CA Samsung SCH-R510 Replacement Battery 3.7V 1300mAh
0.22 lb
Sale priceFrom $27.99 USD Regular price $34.99Unit price -
-
Sold outUp to 21% off
BatteryWeb
Samsung Rogue U520 Replacement Battery AB923446GZB 3.7V 1600mAh
0.22 lb
Sale priceFrom $27.99 USD Regular price $34.99Unit price -
