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LKS-20 2100mAh 3.7V Li-ion Polymer replacement battery for BENTENG M200, LKS-18, and LKS-19 portable WiFi devices, front view showing battery surface and small 2-pin connector
LKS-20 2100mAh 3.7V replacement battery for BENTENG M200, LKS-18, and LKS-19 portable WiFi routers, back view showing model number LKS-20, capacity 2100mAh, and voltage 3.7V on spec label

LKS-20 2100mAh 3.7V Battery for BENTENG M200 LKS-18/19 Portable WiFi Replacement

Original price was: $22.99.Current price is: $16.99.

🔘 LKS-20 2100mAh 3.7V | 🔋 Li-ion Polymer | 📱 For BENTENG M200/LKS-18/19 Portable WiFi

8 in stock

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SKU: LKS-20 Category: Tags: , , , , ,
📦 Shipping, Warranty & After-Sales Information (Click to expand ▼)

✅ Why Our Warranty Stands Out

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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

✅ 2100mAh High Capacity – Restores full battery life for BENTENG M200 and LKS-18/19 portable WiFi devices

✅ 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: LKS-20
Capacity: 2100mAh (typical) / 7.77Wh
Rated voltage: 3.7V
Charge limit voltage: 4.2V
Battery type: Li-ion Polymer (Grade A cells)
Compatible with: BENTENG M200, BENTENG LKS-18, BENTENG LKS-19
Package include: 1 x battery
Restore the portable WiFi performance of your BENTENG M200, LKS-18, or LKS-19 with this LKS-20 2100mAh replacement battery. BENTENG is a well-established wireless communication brand founded in 2009, specializing in 4G/5G portable WiFi routers and data terminals[reference:3]. The BENTENG M200 is a popular portable WiFi hotspot designed for travelers, remote workers, and anyone who needs reliable internet on the go. After extended daily use and repeated charging cycles, the factory battery naturally degrades. This Li‑ion Polymer battery restores the full 2100mAh capacity, bringing back the extended runtime these devices were designed for. Built with grade A cells and multi‑layer safety protection against overcharge, over‑discharge, and short circuits. CE, RoHS, and UN38.3 certified for safe shipping and use.
Designed for Portable WiFi Endurance: The BENTENG M200 and LKS series portable WiFi devices are built for users who need connectivity wherever they go. The LKS-20 2100mAh battery powers these compact routers, providing the energy needed for hours of continuous tethering. After 1‑2 years of daily use, the original battery capacity degrades significantly. Common symptoms include: the device requiring more frequent charging, shorter runtime than when new, unexpected shutdowns during use, or visible battery swelling. This LKS-20 replacement battery restores the factory‑spec 2100mAh capacity, giving you back the freedom to stay connected on the road, at cafes, or during travel. The battery uses high‑density cell technology with precise voltage control, ensuring stable output and compatibility with the device’s original charging circuitry.
Compatibility Note: Fits BENTENG M200, BENTENG LKS-18, and BENTENG LKS-19 only. Please confirm your battery model before ordering — LKS-20 is printed on your original battery. The LKS-18, LKS-19, and LKS-20 share the same battery design and connector layout; using a different battery model may cause charging issues or incorrect battery reporting.

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Frequently Asked Questions

The LKS-20 2100mAh battery replacement is compatible with BENTENG M200, BENTENG LKS-18, and BENTENG LKS-19 portable WiFi devices. If you need an LKS-20 battery for BENTENG M200 or an LKS-20 battery for BENTENG LKS-18, this replacement battery is the exact match. For LKS-20 battery compatibility, please verify your battery model printed on the original unit — LKS-20 is the correct model for these devices. The LKS-18, LKS-19, and LKS-20 share the same battery design, making this LKS-20 2100mAh BENTENG battery a direct replacement for all three models. If your current BENTENG M200 battery now drains quickly or shuts down unexpectedly, this LKS-20 3.7V 2100mAh Li‑ion Polymer battery will restore full runtime and reliability.

The LKS-20 2100mAh battery for BENTENG M200, LKS-18, and LKS-19 has a typical capacity of 2100mAh (7.77Wh) and a rated voltage of 3.7V, with a charge limit of 4.2V. This LKS-20 3.7V 2100mAh Li‑ion Polymer battery is built with grade A cells and is CE, RoHS, and UN38.3 certified. For LKS-20 battery life after replacement, the battery restores the factory runtime that these portable WiFi devices are known for. The LKS-20 2100mAh battery performance provides reliable power for 4G connectivity, multi‑device tethering, and extended use during travel or work. For best LKS-20 battery performance BENTENG M200, allow 2‑3 full charge cycles after installation to calibrate the battery meter. If your original BENTENG LKS-19 battery now requires more frequent charging instead of lasting through your workday, this replacement will restore the full 2100mAh capacity and stable voltage output.

Professional LKS-20 battery installation is recommended for BENTENG M200, LKS-18, and LKS-19. These devices have a sealed design that requires careful opening. To replace LKS-20 battery in BENTENG M200 or replace LKS-20 battery in BENTENG LKS-18, the technician must carefully open the device casing to avoid damaging the display or internal components, disconnect the battery's small 2‑pin connector, remove the old battery, and install the new LKS-20 battery before resealing the device. For LKS-20 battery installation, improper handling can damage the device's internal components or compromise the casing seal. For LKS-20 battery health maintenance and BENTENG M200 battery care tips: 1) Use the original charger and cable for optimal charging. 2) Keep battery level between 20% and 80% for daily use to maximize the lifespan of the 2100mAh cell. 3) Avoid exposing the device to high temperatures (above 40°C / 104°F), especially while 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 device until it auto‑shuts off, then charge uninterrupted to 100%. For LKS-20 battery care tips BENTENG LKS-19, stop using immediately if the battery shows any swelling or deformation.

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