Freefly EV Peak U4-Pro is a dual-channel 12S LiPo balancing charger for Alta X. Charge two Flight Packs simultaneously up to 800 W per channel with 10/15/20 A settings, cell balancing and storage modes, 110–240 V auto switching, plus included XT90 and 12S balance leads.
Financing options through Approve, more information here
Freefly EV Peak U4-Pro Enterprise Drone Charger is a dual-channel, 12S LiPo balancing charger with an integrated power supply, purpose-built to keep Alta X flights moving. Charge two Alta X Flight Packs at once on independent channels, with adjustable current and smart safety features that protect packs and simplify fleet ops.
Setup is straightforward for the hangar or the field. The U4-Pro auto-switches between 110–240 V AC, balances cells for consistent health, and supports storage charge/discharge to prep batteries for transport or downtime. All required leads are included to charge two Alta X packs out of the box.
| AC input | 110–240 V~ 50/60 Hz, up to 11 A |
| Max charge power | 800 W × 2 (independent channels) |
| Max discharge power | 60 W × 2 |
| Charge current (per channel) | Selectable 10 A / 15 A / 20 A |
| Discharge current (per channel) | 1,000 mA (1.0 A) |
| Cell balancing accuracy | <20 mV |
| Modes | Charge, balance charge, storage charge/discharge |
| Chemistry / cell count | LiPo, 12S |
| Outputs | Dual-channel (charges two 12S Alta X Flight Packs simultaneously) |
| Update port | USB Micro |
| Leads & harnesses | XT90 charge leads; 12S balance leads (included) |
| AC cable | 110 V US-style plug (included) |
| Electrical protection | Overcurrent, under-voltage, short-circuit, reverse-polarity |
| Power supply | Integrated; automatic 110–240 V switching |
| Dimensions (L × W × H) | 12.25 × 9 × 5.75 in (312 × 228 × 145 mm) |
| Weight | 6.75 lb (3.05 kg) |
In The Box:
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