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BAT-A12 2000mAh 3.8V Li-ion Polymer replacement battery for Acer Liquid Z520, front view showing battery surface and small 2-pin connector
BAT-A12 2000mAh 3.8V replacement battery for Acer Liquid Z520 and Z520 Dual SIM, back view showing model number BAT-A12, capacity 2000mAh, and voltage 3.8V on spec label

BAT-A12 2000mAh 3.8V Battery for Acer Liquid Z520 / Z520 Dual SIM Replacement

Original price was: $19.99.Current price is: $15.99.

🔘 BAT-A12 2000mAh 3.8V | 🔋 Li-ion Polymer | 📱 For Acer Liquid Z520 / Z520 Dual SIM

8 in stock

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SKU: BAT-A12 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

✅ 2000mAh High Capacity – Restores full battery life for Acer Liquid Z520

✅ 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

✅ 100% Compatibility Guarantee – If it doesn’t fit, we’ll refund you. No questions asked.

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

Battery model: BAT-A12 (also compatible with BAT-A12(1ICP4/51/65), KT.00104.002)
Capacity: 2000mAh / 7.6Wh
Rated voltage: 3.8V
Charge limit voltage: 4.35V
Battery type: Li-ion Polymer (Grade A cells)
Compatible with: Acer Liquid Z520, Acer Liquid Z520 Dual SIM
Package include: 1 x battery
Restore reliable power to your Acer Liquid Z520 with this BAT-A12 2000mAh replacement battery. Released in 2015, the Acer Liquid Z520 was a practical entry-level smartphone designed for essential daily tasks — calls, messaging, light browsing, and basic apps. It features a 5-inch display and a user-replaceable 2000mAh battery. After 10 years of use, the original battery capacity has likely degraded significantly. This Li-ion Polymer battery restores the full 2000mAh capacity, bringing back the dependable daily performance this phone was 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.
Designed for Easy DIY Replacement: Unlike many modern smartphones that require heating, prying, and special tools to access the battery, the Acer Liquid Z520 features a removable back cover. This makes battery replacement quick and simple — just power off the device, remove the back cover, swap the battery, and snap the cover back on. No heat gun, no adhesive, no professional tools required. This user-replaceable design extends the useful life of the device without expensive repair costs. Common signs that the original battery needs replacement include: the phone requiring multiple charges per day, unexpected shutdowns at 15-25% battery remaining, slower charging than when new, or visible battery swelling. This replacement restores the original performance, allowing you to continue using your Acer Liquid Z520 without interruption.
Compatibility Note: Fits Acer Liquid Z520 and Acer Liquid Z520 Dual SIM. Please confirm your battery model before ordering — BAT-A12, BAT-A12(1ICP4/51/65), or KT.00104.002 are printed on your original battery. This battery is NOT compatible with Acer Liquid Z500, Z530, Z630, or other Acer models.

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Frequently Asked Questions

The BAT-A12 battery is compatible with Acer Liquid Z520 and Acer Liquid Z520 Dual SIM. If you need an Acer Liquid Z520 battery replacement or an Acer Z520 Dual SIM battery replacement, this BAT-A12 2000mAh battery is the exact match. The Acer Liquid Z520 features a 5-inch display and a user-replaceable 2000mAh battery design. For BAT-A12 battery for Acer Liquid Z520 compatibility, please verify your device model in Settings > About Phone. This battery also replaces OEM part numbers BAT-A12(1ICP4/51/65) and KT.00104.002. This battery is NOT compatible with Acer Liquid Z500, Z530, Z630, or other Acer models. If your Acer Liquid Z520 battery drains quickly or won't hold a charge, this BAT-A12 replacement battery will restore full performance.

The BAT-A12 2000mAh battery for Acer Liquid Z520 has a typical capacity of 2000mAh (7.6Wh) and a rated voltage of 3.8V, with a charge limit of 4.35V. This BAT-A12 3.8V 2000mAh Li-ion Polymer battery is built with grade A cells and is CE, RoHS, and UN38.3 certified. For Acer Liquid Z520 battery life after replacement, expect approximately a full day of moderate use on a single charge. The Acer Liquid Z520 2000mAh battery performance provides reliable endurance for calls, messaging, and light browsing. Charging the Acer Liquid Z520 battery with a standard 5V/1A charger takes approximately 2-2.5 hours for a full charge. For best performance, allow 2-3 full charge cycles after installation to calibrate the battery meter. If your original battery now requires daily multiple charges or shuts down at 15-25% remaining, this replacement will restore the original battery life.

Replacing the Acer Liquid Z520 battery is straightforward because the phone features a removable back cover. For Acer Liquid Z520 battery replacement guide: 1) Power off the phone completely. 2) Remove the back cover by prying from the notch at the bottom edge. 3) Locate the BAT-A12 battery. 4) Disconnect the battery's small 2-pin connector by pulling the plug (not the wires). 5) Remove the old battery — it lifts out easily. 6) Connect the new BAT-A12 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 BAT-A12 battery installation Acer Liquid Z520, no special tools or heat gun required. For Acer Liquid Z520 battery health maintenance: 1) Use only a standard 5V/1A charger. 2) Keep battery level between 20% and 80% for daily use to maximize lifespan. 3) Avoid exposing the phone to high temperatures (above 40°C / 104°F). 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 phone until it auto-shuts off, then charge uninterrupted to 100%. For Acer Liquid Z520 battery care tips, stop using immediately if the battery shows any swelling.

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