Nihewo 44.4V 39000mAh 12S Semi-solid Lipo Battery 5C for RC Boat Vehicle

Product Description
The Nihewo 44.4V 39000mAh 12S Semi‑solid Lipo Battery delivers high energy density with improved safety. Semi‑solid electrolyte minimises swelling and thermal runaway, while 5C continuous discharge supports sustained heavy loads.Compact (205×89×130.5mm) and 5.14kg – fits standard large‑scale bays.

Specification 
Nominal Voltage: 44.4V (12S)
Capacity: 39000mAh
Discharge Rate: 5C continuous
Cell Type: Semi-solid LiPo (high safety, low swelling)
Connector: anti-spark AS150U/XT90S (optional)
Dimensions: 205 × 89 × 130.5 mm
Weight: 5140g
Cycle Life: ≥300 cycles (80% DOD)
Recommended Charge Rate: 0.5C – 1C

Packing Included
1 × Nihewo 44.4V 39000mAh 12S Semi-solid Lipo Battery Soft Case

Please Notice
Use a 12S LiPo balance charger at 0.5–1C only. Store at 3.8–3.85V per cell in cool, dry place. Inspect before each use. Avoid puncture, heat >60°C, and always charge in a LiPo‑safe bag. Minimum discharge cut‑off: 3.2V per cell.

FAQ
Q1: Is it compatible with XT90 ESCs?
A: Yes – use an AS150U‑to‑XT90 adapter or solder an XT90. The AS150U plug is anti‑spark.

Q2: Why choose semi‑solid over regular LiPo?
A: Lower leakage and thermal runaway risk, less swelling, and better resistance to vibration.

Q3: Runtime at 80A load?
A: Roughly 25–30 minutes (39Ah ÷ 80A × 0.8 efficiency).

Q4: How to store long‑term?
A: Charge to 3.85V per cell, keep in fireproof container at 15–25°C, and recheck voltage every 60 days.