3950 mAh Replacement Battery for DJI Mavic 2 Pro / Zoom Remote Controller (RC1A / RC1B)

Compatibility 

️ NOT compatible with DJI Smart Controller RM500.

️ This is the internal battery that lives inside the RC1A/RC1B body — not an external power bank, not a stick battery.

In The Box

• 1 × 3950 mAh Li‑Po Replacement Battery

Product Overview

The 623758‑1S2P is the correct‑spec service battery for the Mavic 2 Pro / Zoom remote controls (RC1A/RC1B). These controllers famously suffer from aged internal packs after years of service — swelling, sudden shutoffs, or refusing to charge past 50%. This replacement restores the remote to full day‑long stamina without modifying the chassis. It follows DJI’s OEM electrical architecture: 1S2P parallel pouch cells, 3.83 V nominal, PH plug, and a factory‑style flex with NTC thermistor + fuel‑gauge pins. The result is a clean, solder‑free swap: peel old cell, unplug, plug new, secure.

Key Features

1S2P Parallel Cell Design (More Stable Than 1S1P)

• Two 1975 mAh cells in parallel → 3950 mAh total.

• Lower internal resistance vs single larger cell.

• Smoother discharge curve under screen + processor + video‑link load.

• Longer cycle life, better heat distribution.

True OEM‑Match Integration

• Standard PH (JST‑style) connector — same pitch and keying as original.

• Multi‑wire flex tail: power + signal + NTC + SOC sense.

• No cutting, no soldering, no firmware hacks.

• Remote reads % accurately just like OEM.

️ NTC Temperature Monitoring

• Built‑in thermistor talks to RC mainboard.

• Remote can detect overheating and throttle/disable charging.

• Safety cutoff preserved — no mystery shutdowns.

️ Protected Chemistry

• Integrated PCM (Protection Circuit Module):

• Over‑charge

• Over‑discharge

• Over‑current

• Short‑circuit

⏱️ Runtime Restoration

• New cell revives: ~2.5–3 h continuous screen‑on time.

• Supports max link power for OcuSync 2.0 without voltage sag.

• Eliminates “RC battery low” warnings mid‑flight.

️ Technical Specifications

Installation & Usage Tips

• Opening the RC: Requires T6 / T5 screwdriver — back shell pops off, ribbon cables stay connected.

• Old Battery Removal: Usually held by mild adhesive — gently peel from edge, don’t puncture.

• Plug Orientation: Tab clicks one way only; don’t force reverse.

• First Charge: After install, fully charge remote to 100% — allows BMS to calibrate capacity.

• Break‑In: 2–3 charge/discharge cycles smooth out reporting accuracy.

• Swollen Old Pack? Dispose properly — never reuse or pierce.

️ Safety Warnings (Critical)

• DO NOT puncture, crush, bend, or cut the pouch cell.

• DO NOT short positive and negative tabs.

• DO NOT charge unattended for first cycle.

• DO NOT expose to >60 °C or direct sun inside parked car.

• NEVER mix old battery + new battery in same device (this controller only holds one anyway — don’t daisy chain).

• Dispose as lithium — take to electronics recycling / battery drop‑off.