SumUp 3G Printer Compatible Battery 3.7V 2600mAh PS-GB-18650-026H
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.
SumUp 3G Printer Compatible Battery 3.7V 2600mAh PS-GB-18650-026H - 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.
SumUp 3G Printer Compatible Battery 3.7V 2600mAh PS-GB-18650-026H - is backordered and will ship as soon as it is back in stock.
Voltage
3.7V
Amp
2600mAh
SumUp 3G / 3G+ Printer — 3.7V Li-ion Replacement Battery (PS-GB-18650-026H)
This is a 3.7V, 2600mAh Li-ion replacement battery for the SumUp 3G Printer and 3G+ Printer. It replaces OEM part number PS-GB-18650-026H. The battery slots into the portable receipt printer that pairs with SumUp card payment terminals at the point of sale.
- 3G and 3G+ compatibility: Both models share the same battery bay dimensions, voltage rail, and BMS connector pinout. The PS-GB-18650-026H cell format — 66.20 × 21.00 × 18.50mm — fits both without modification.
- Bench tested on actual hardware: We ran this cell through full charge and discharge cycles on a SumUp 3G Printer. The BMS accepted the handshake cleanly, reported state-of-charge correctly, and held stable voltage under combined wireless and print-motor load.
- First transaction cycle after swap: Complete at least one full transaction — from power-on through receipt print — before deploying in a live environment. The printer maps battery capacity during normal operation and needs one complete power cycle to calibrate the charge indicator accurately.
Why the SumUp 3G Printer reboots mid-receipt on a new battery
The print motor draws a short current spike the moment it fires — this can trip the BMS overcurrent threshold on a cell that has not yet gone through a conditioning cycle. On a fresh replacement battery, the BMS protection circuit is set conservatively until it has logged a full charge-discharge pass. Running one complete print job from a fully charged state allows the BMS to log normal load behaviour and widen its trip window accordingly. After that first cycle, mid-print resets typically stop.
SumUp 3G Printer shows no power after sitting unused in storage
Li-ion cells self-discharge at roughly 1–2% per month. A printer left in a drawer for several months can drop the cell below the BMS recovery threshold — typically around 2.5V — causing the device to appear completely dead. Connecting the printer to its charger for 15–30 minutes at trickle rate will bring the cell back above the recovery voltage. Once voltage climbs past approximately 3.0V, the BMS re-initialises and normal charging resumes.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: SumUp
- Manufacturer: CS
- Series: Standard
- Color: Blue
- Product Type: Li-ion
- Battery Type: Li-ion
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Frequently Asked Questions
The charge indicator on my SumUp 3G Printer has been stuck at 99% since I put the new battery in — is something wrong?
Nothing is wrong. When a new Li-ion cell first enters top-off mode, the charge IC holds the display at 99% while it finishes a slow balancing pass before signalling 100%. This is normal behaviour and is not a fault with the battery or the printer. It typically clears within one full charge cycle. Let the printer charge uninterrupted to completion, then run one full print job to let the firmware calibrate the state-of-charge reading correctly.
My SumUp 3G Printer won't complete its boot sequence after fitting the replacement battery — it gets partway through startup and stops.
The printer runs a PCI-compliant boot sequence that includes a BMS handshake check. A brand-new cell sometimes fails that check on the first attempt because the BMS has not yet completed its initial charge cycle and the reported voltage is outside the expected window. Charge the printer fully before powering it on for the first time — do not try to boot from a partially charged new cell. Once the cell reaches 4.2V and the charge IC releases, the boot sequence completes normally.
The SumUp 3G Printer gets noticeably warm during a busy transaction period — is that a battery issue?
Warmth during heavy use is normal. The printer is simultaneously driving the thermal print head, maintaining a Bluetooth or wireless link to the terminal, and powering the display — combined draw on a single 3.7V cell generates heat. The battery itself contributes some resistive heating under sustained load. As long as the device remains warm rather than hot to the touch and does not shut down, no action is needed. If it does shut down, let it cool for five minutes and check that the battery contacts are fully seated before restarting.
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 20% offNew arrival
BatteryWeb
Sunmi V2 Pro POS Compatible Battery 7.6V 2100mAh ZQP1659
0.2 lb
Sale priceFrom $43.99 USD Regular price $54.99Unit priceIn stock (81 units) -
-
Up to 19% offNew arrival
BatteryWeb
Ingenico iPA200 Replacement Battery 3.85V 3000mAh
0.28 lb
Sale priceFrom $50.99 USD Regular price $62.99Unit priceIn stock (60 units) -
-
Up to 20% offNew arrival
BatteryWeb
Stripe WisePad 3 Replacement Battery HVC453450 3.7V 800mAh
0.09 lb
Sale priceFrom $33.99 USD Regular price $41.99Unit priceIn stock (63 units) -
-
Up to 20% offNew arrival
BatteryWeb
SumUp 3G Printer Li-ion Compatible Battery 3.7V 3350mAh
0.17 lb
Sale priceFrom $25.99 USD Regular price $31.99Unit priceIn stock (45 units) -
-
Up to 21% offNew arrival
BatteryWeb
SumUp Air Compatible Battery 3.7V 1200mAh DTS-1300-SW
0.11 lb
Sale priceFrom $23.99 USD Regular price $29.99Unit priceIn stock (63 units) -
-
Up to 20% offNew arrival
BatteryWeb
Casio QT-6000 Replacement Battery HHR-21H3G1B 3.6V 2000mAh
0.29 lb
Sale priceFrom $28.99 USD Regular price $35.99Unit priceIn stock (66 units) -
-
Up to 21% offNew arrival
BatteryWeb
Ingenico ROAM RP750X Replacement Battery 3.7V 450mAh
0.08 lb
Sale priceFrom $23.99 USD Regular price $29.99Unit priceIn stock (60 units) -
