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JKPJ 3600mAh 7.7V Li-ion Polymer replacement battery for Sunmi V2S T5940 POS terminal, front view showing battery surface and small 2-pin connector

JKPJ 3600mAh 7.7V Battery for Sunmi V2S T5940 POS Terminal Cash Register Replacement

Original price was: $45.99.Current price is: $35.99.

🔘 JKPJ 3600mAh 7.7V | 🔋 Li-ion Polymer Dual-Cell | 📟 For Sunmi V2S T5940 POS Terminal Cash Register

8 in stock

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SKU: JKPJ Category: Tags: , , , , , ,
📦 Shipping, Warranty & After-Sales Information (Click to expand ▼)

✅ Why Our Warranty Stands Out

Unlike marketplace sellers with short buyer protection windows, we handle claims directly — no automated disputes, no endless back-and-forth.

Compare✅ Qingsm Tech⚠️ eBay / AliExpress
Warranty Period90 days from delivery15-30 days from order confirmation
When It Starts📦 Upon delivery⚠️ Upon order confirmation (even before you receive it)
Claims HandlingWe do it directly — email usAutomated dispute system, seller dependent
After Window ExpiresStill can contact us for supportNo recourse, seller can ignore you

🔋 90-day warranty is the industry standard for replacement batteries. Batteries naturally lose capacity over time — this normal wear is not covered. Warranty applies to manufacturing defects only.

📦 Shipping Cost & Delivery Time (Economy Shipping from China)

📦 Note: Batteries are classified as hazardous goods and must be shipped via specialized channels, which may take slightly longer than standard couriers. Delivery times are estimates and may be affected by customs, weather, or other unforeseen circumstances. If your country is not listed in the table below, we are currently unable to ship batteries to that destination.

DestinationFreight (USD)Est. Delivery Time
United States$7.808–15 days
Canada$6.8018–30 days
Mexico$10.0030–60 days
Germany, France, United Kingdom, Greece$6.5018–30 days
Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Hungary, Ireland, Italy, Luxembourg, Netherlands, Norway, Poland, Portugal, Slovakia, Spain, Sweden, Switzerland$8.0018–30 days
Croatia, Finland, Lithuania, Latvia, Slovenia$8.0030–50 days
Bulgaria, Romania$14.0030–50 days
South Korea, Japan, Australia, New Zealand, Israel, Malaysia, Singapore, Thailand, Philippines, Kazakhstan$7.5018–30 days
United Arab Emirates, Saudi Arabia, Vietnam, Chile, Peru, Colombia, Brazil$18.0025–60 days

🇧🇷 Note for Brazil: Brazilian customs can occasionally cause delays of up to 80 days or more. And please indicate the recipient's CPF, as it is required for Brazilian customs and shipping. Thanks! We appreciate your understanding.

🇪🇺 Note for EU countries: Due to new EU customs regulations effective July 1, 2026, a flat tariff fee of $4.00 (approx. €3.50) applies to shipments to EU countries. This fee covers customs tariff, handling, and payment processing costs, and will be added at checkout. Thank you for your understanding.

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Description

✅ Condition: Brand New – Never used, factory-tested quality

✅ 3600mAh High Capacity – Restores full battery life for Sunmi V2S POS terminal

✅ CE / RoHS / UN38.3 Certified

✅ 90-Day Warranty from delivery – Longer coverage than major platforms

✅ Ships in 3-7 days with tracking

🛡️ Shipping Protection Available at Checkout

✅ PayPal Buyer Protection included

⚠️ Low Stock Alert: Only 8 left in stock. Order now to avoid waiting.

Battery model: JKPJ
Capacity: 3600mAh / 27.72Wh
Rated voltage: 7.7V (equivalent to 3.85V/7000mAh dual-cell)
Charge limit voltage: 4.4V per cell
Battery type: Li-ion Polymer (Grade A cells, dual-cell series design)
Connection type: Small 2-pin connector
Compatible with: Sunmi V2S (T5940) Handheld POS Terminal, Cash Register, Barcode Scanner
Package include: 1 x battery
This JKPJ replacement battery restores the full 3600mAh capacity of the Sunmi V2S POS terminal. The Sunmi V2S (T5940) is a rugged handheld device designed for high-volume retail, hospitality, and logistics environments. It integrates a 5.5-inch touchscreen, a built-in 58mm thermal printer, a 1D/2D barcode scanner, 4G connectivity, and a shock-resistant casing that withstands drops from up to 1.2 meters. The battery operates at 7.7V, using a dual-cell series configuration that delivers the equivalent of 7000mAh at the more common 3.85V rating, providing extended runtime for continuous order processing, receipt printing, and scanning throughout long shifts. This Li-ion Polymer battery is manufactured with grade A cells and incorporates protection against overcharge, over-discharge, and short circuits. CE, RoHS, and UN38.3 certified.
Built for Commercial Reliability and Extended Shifts: The Sunmi V2S is a workhorse for businesses that depend on uninterrupted operations. The original 3600mAh battery typically supports a full day of moderate to heavy use, including frequent printing and scanning. Over time, batteries naturally lose capacity. Common indicators of a degraded battery include: the terminal not lasting through a busy shift, unexpected power-offs at 15-25% charge, noticeably longer charging times, or physical swelling of the battery case. This replacement restores the original runtime and charging speed, allowing the terminal to perform reliably during peak hours. The JKPJ battery is designed to work seamlessly with the standard 5V/2A charging adapter supplied with the device, ensuring straightforward and safe recharging.
Compatibility Note: This battery is specifically for the Sunmi V2S (model T5940) handheld POS terminal and its variants used in cash register and barcode scanner applications. Before ordering, please verify that your original battery is labeled JKPJ. This battery is not compatible with Sunmi V2, Sunmi V2 Pro, or Sunmi V2S Plus, which may require different battery models.

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Frequently Asked Questions

The JKPJ battery for Sunmi V2S T5940 is compatible with Sunmi V2S (model T5940) handheld POS terminals, cash registers, and barcode scanners. If you need a Sunmi V2S battery replacement for T5940 or a Sunmi POS terminal battery replacement, this JKPJ 3600mAh battery is the exact match. For JKPJ battery for Sunmi V2S compatibility, check your device label — it should show model T5940 and battery type JKPJ. The Sunmi V2S features a 5.5-inch HD+ IPS touchscreen, built-in 58mm thermal printer, and 1D/2D barcode scanner. This JKPJ battery for Sunmi V2S is NOT compatible with Sunmi V2, Sunmi V2 Pro, or Sunmi V2S Plus. If your Sunmi V2S battery drains quickly during shifts, this JKPJ replacement battery will restore full performance.

The JKPJ 3600mAh battery for Sunmi V2S T5940 has a capacity of 3600mAh (27.72Wh) and a rated voltage of 7.7V, equivalent to 7000mAh at 3.85V in a dual-cell design. This JKPJ 7.7V 3600mAh Li-ion Polymer battery is built with grade A cells and is CE, RoHS, and UN38.3 certified. For Sunmi V2S battery life after replacement, expect a full shift of heavy use — processing orders, printing receipts, and scanning barcodes throughout the day. The Sunmi V2S 3600mAh battery performance provides extended runtime for continuous printing operations. Charging the Sunmi V2S battery with the standard 5V/2A adapter takes approximately 3-4 hours for a full charge. For best JKPJ 3600mAh battery performance Sunmi V2S, allow 2-3 full charge cycles after installation to calibrate the battery meter. If your original battery now requires multiple charges per shift, this JKPJ 7.7V 3600mAh Li-ion Polymer battery will restore original runtime.

Replacing the Sunmi V2S battery is straightforward thanks to its removable back cover design. For Sunmi V2S battery replacement guide: 1) Power off the terminal. 2) Remove the back cover by prying from the notch — no tools required. 3) Locate the JKPJ battery. 4) Disconnect the small 2-pin connector by pulling the plug (not the wires). 5) Lift out the old battery. 6) Connect the new JKPJ battery — the connector is keyed and only fits one way. 7) Place the new battery in the compartment and snap the back cover back on. For JKPJ battery installation Sunmi V2S T5940, no heat gun, no adhesive, no special tools required. For Sunmi V2S battery health maintenance: 1) Use only the standard 5V/2A charger. 2) Keep battery level between 20% and 80% for daily use. 3) Avoid exposing the terminal to high temperatures (above 45°C / 113°F) during charging. 4) For long-term storage (over 2 months), keep the battery at approximately 40-60% charge. 5) Perform a full calibration cycle after installation: drain the terminal until it powers off, then charge uninterrupted to 100%. For Sunmi V2S battery care tips, stop using immediately if the battery shows any swelling.

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