4500mAh 3.8V Li-ion Polymer Replacement Battery for Anbernic RG405M Metal Handheld Console

Description

Battery model: For Anbernic RG405M
Capacity: 4500mAh / 17.1Wh
Rated voltage: 3.8V
Charge limit voltage: 4.35V
Battery type: Li-ion Polymer
Compatible with: Anbernic RG405M, Anbernic RG 405M
Package include: 1 x battery
Give your Anbernic RG405M metal handheld a new lease on life with this high-performance 4500mAh replacement battery. Unlike generic power banks or universal cells, this battery is specifically dimensioned to fit the RG405M’s unibody aluminum shell — a critical detail because the RG405M’s metal construction dissipates heat differently than plastic handhelds. This Li-ion Polymer cell delivers reliable 4500mAh capacity for extended retro gaming sessions, letting you complete challenging RPGs or long arcade runs without hunting for a charger.
Why choose this RG405M battery?
The RG405M is known for its premium metal build and 4-inch IPS screen, but original batteries degrade over time—especially with the heat generated by emulating PlayStation 2, Dreamcast, and N64 titles. This replacement cell is built with grade A Li-ion Polymer cells and multi-layer safety protection against overcharge, over-discharge, and short circuits. CE, RoHS, and UN38.3 certified for global shipping safety. It fully supports the original charging specifications, so you can use your existing Anbernic charger without worrying about compatibility issues.
Compatibility and Fitment Note:
Fits Anbernic RG405M and RG 405M only — not compatible with RG353M, RG505, or other Anbernic models. The RG405M’s aluminum interior leaves minimal tolerance for battery swelling or size variation; this battery maintains the required dimensions and connector orientation (small 2‑pin micro connector, approximately 1.25mm pitch, wire length approximately 50mm). Before ordering, please open your RG405M’s back panel to confirm your current battery’s connector type and cable routing — early and late revisions of the RG405M may use slightly different connectors. Professional installation is recommended if you are not comfortable with handheld electronics disassembly.
Gaming Performance & Battery Care Tips:
For best results with emulators: avoid full discharge (keep above 20%) to maintain voltage stability during high-emulation loads. Use a standard 5V/2A charger; do not use Quick Charge (QC) or Power Delivery (PD) fast chargers, as the RG405M’s charging circuit is not designed for them. New batteries require 3-5 full charge cycles to reach optimal capacity. If you notice swelling, overheating, or sudden capacity drop, stop use immediately and contact us for a warranty replacement. Store the device at partial charge (around 50%) if not used for several weeks.
Why our battery stands out for retro handhelds:
Many third-party batteries for Anbernic devices use generic cells that don’t account for the RG405M’s metal shell thermal characteristics. Our battery has been tested under sustained emulation loads (PS2, GC, 3 hours continuous) to ensure stable voltage output. We also provide direct warranty support — no automated disputes, no endless back-and-forth with marketplace sellers.