Why Choose PISEN Battery?
1. Certified Market Leader – Officially ranked No.1 in both Sales and Customer Ratings on Tmall (China's largest e-commerce platform), proven by market preference and user satisfaction.
2. Guaranteed Perfect Fit – Engineered to precisely match the original battery in capacity, size, and weight, enabling a seamless, gap-free replacement that looks and feels original.
3. Engineered for Longevity & Extreme Climates – Built to last with ≈85% capacity after 500 cycles and minimal expansion (≤10%). Its superior chemistry ensures exceptional resilience: ≥95% capacity at 60°C and ≥70% at -20°C, outperforming standard batteries in harsh conditions.
4. Minimal Standby Drain – Features an ultra-low self-discharge rate, retaining ≥90% capacity after 28 days of storage. Your device stays ready for use even after extended periods of inactivity.
5. Efficient & Cool Operation – Low internal resistance enhances charging efficiency and reduces heat. Coupled with a built-in protection IC, calibration IC, and an AI-driven cooling algorithm, it delivers intelligent temperature management for sustained performance.
6. Premium Safety by Design – Utilizes high-grade battery cells and components within a robust circuit design. This focus on quality and protection effectively mitigates the risk of swelling (bulging) and ensures long-term reliability.
Battery Health & Notification Pop-up Guide for iPhone
1. For iPhone 5S to iPhone X, battery health will be displayed normally with no pop-up notification after a battery replacement. (Models: For iPhone 5s, SE1, 6, 6 Plus, 6s, 6s Plus, 7, 7 Plus, 8, 8 Plus, X.)
2. For iPhone XR and newer models, if running iOS 18.1 or later, it will display battery health and have no pop-up notification after a battery replacement. (Models: For iPhone SE2, XR, XS, XS Max, 11 series, 12 series, 13 series, 14 series, 15 series and newer.)
3. For running iOS versions below 18.1 on iPhone XR/ newer models, battery health will not display in Settings (may show as “—”, “Unknown Part”, or blank) and a pop-up will appear. Health data can be checked via i4 Assistant. (Models: For iPhone SE2, XR, XS, XS Max, 11 series, 12 series, 13 series, 14 series, 15 series and newer.)
4. The pop-up is for a temporary Apple system notice, usually lasting about 7 days (occasionally longer for a few) to alert that a non-genuine battery was installed. It is not permanent and will disappear afterward.
5. Battery health can be monitored with i4 Assistant, but checking once a year is enough if daily performance is good.
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