Overview
BetaFPV LAVA II 4S LiHV battery series (580mAh / 680mAh) is designed to deliver higher capacity and high discharge performance in a compact pack. It features a 95C C-rate and uses a Z-Folding processed cell structure for improved energy density and cycle life. Tagline: “Power More. Fly Longer.”
Key Features
- Capacity increase: 5.5% to 7.7% (stated for this generation)
- Discharge rate: 95C (26.7% increase vs. 75C stated for the previous version)
- Max current boost: 33.6% (stated)
- Z-Folding processed cells (stated benefits: energy density, capacity density, power output, thermal management, cycle life)
- LiHV chemistry with XT30 main connector
Specifications
| Item | LAVA II 4S Battery |
| Capacity | 580mAh / 680mAh |
| Battery type | LiHV |
| Voltage | 15.2V |
| C-rate | 95C |
| Charge plug (balance) | JST-XH2.54 Plug |
| Main connector | XT30 with 18AWG silicone wire |
| Energy (from label) | 580mAh: 8.82Wh; 680mAh: 10.34Wh |
| Weight | 55g (580mAh), 64.2g (680mAh) |
Dimensions
LAVA II 4S 580mAh
- Battery: 71mm / 2.79in (length) x 26.5mm / 1.04in (width) x 15.5mm / 0.61in (height)
- Lead length shown: 40mm / 1.57in and 25mm / 0.98in
LAVA II 4S 680mAh
- Battery: 81mm / 3.19in (length) x 26.5mm / 1.04in (width) x 15.5mm / 0.61in (height)
- Lead length shown: 40mm / 1.57in and 25mm / 0.98in
Discharge Curves (as provided)
- “Discharge at Current 33A” comparison legend: LAVA 4S 550mAh 75C vs. LAVA II 4S 580mAh 95C
- “Discharge at Current 39A” legend: LAVA II 4S 680mAh 95C
Z-Folding Process
The Z-Folding process is stated to provide low internal resistance for efficient high-current discharge, a 0.2V higher voltage under load compared to wound cells, 5% higher energy density (same volume), and extended cycle life. Cell layer labels shown: anode, separator, cathode.
What’s Included
- 2 x LAVA II 4S 580mAh or 680mAh 95C Battery
Warning
- Please fully charge the new battery before use.
- Only use a charger designed for lithium polymer/Li-ion battery, and never leave the battery unattended during the charging process.
- Always keep the battery away from flammable and explosive materials while charging.
- Never overcharge the battery. The maximum voltage for a LiPo battery is 4.2V per cell, and for a LiHV battery is 4.35V per cell.
- Never discharge the battery to a level below 3V per cell under load.
- Do not store fully charged batteries for more than 3 days. For long-term storage, maintain the voltage between 3.8V and 3.9V.
- Do not disassemble, crush, short circuit, or expose to flame or other sources of ignition.
- Do not use batteries that are deformed or swollen.
For compatibility questions (XT30, balance plug, sizing) or order support, contact support@rcdrone.top or visit https://rcdrone.top/.
Details

Power More. Fly Longer. LAVA II 4S LiHV packs combine higher capacity with a 95C discharge rating in a compact size.

The 580mAh version keeps a short, tidy XT30 lead layout for clean 4S builds where space is limited.


Under a 33A load, the LAVA II 580mAh 95C pack maintains a higher voltage curve than the prior 75C generation.


Z-Folding processed cells are engineered for efficient high-current output, improved thermal control, and longer cycle life.

Each set includes two batteries packaged in the LAVA box, plus the included paperwork.
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