Description

The Max 3.7V High Nickel Ternary 320WH/KG 20,000mAh delivers 74Wh — the highest energy density in the 72×170mm format. It offers more energy than comparable cells while remaining lighter and thinner. Designed for maximum efficiency, it supports 1C charging, 3C continuous, and 5C peak, prioritizing flight time over peak power.

• 320WH/KG — The Highest Energy Density in the 72×170mm Footprint

The Max series High Nickel Ternary semi-solid cathode delivers 320WH/KG — the highest gravimetric energy density of any cell in the 72×170mm format across all series. The Prime HN Ternary cells at this footprint deliver 280WH/KG. The Volt HV Li-Co delivers 240WH/KG. The Volt TerLCO delivers 200WH/KG. The 14.3% density advantage over the nearest competitor (Prime at 280WH/KG) translates directly into more stored energy for the same weight, or less weight for the same stored energy — the two metrics that determine endurance and payload budget on any fixed-bay drone platform.

• 74.0Wh at 245g — More Energy Than Any Same-Weight Cell in This Footprint

The Max 20,000mAh stores 74.0Wh in 245g. No cell at or below 245g in the 72×170mm footprint stores more. The Prime HN Ternary 17,000mAh stores 62.9Wh at 225g — 17.6% less energy for 20g less weight. The Prime SHV LCO 17,000mAh stores 67.2Wh at 253g — 9.2% less energy at 8g more. The Volt HV Li-Co 17,000mAh stores 64.6Wh at 284g — 12.7% less energy at 39g more. At the 245g weight point, the Max 20,000mAh delivers more stored energy than any alternative in this format.

• 17.6% More Energy Than the Prime HN Ternary 17,000mAh — 20g More Weight

The Prime HN Ternary 17,000mAh is the closest competitor at 72×170mm by weight and thickness profile: 62.9Wh, 225g, 8.2mm, 280WH/KG. The Max 20,000mAh stores 74.0Wh in 245g at 8.8mm — 17.6% more energy for 20g and 0.6mm more. For any platform currently running the Prime HN Ternary 17,000mAh where maximum endurance is the objective and the rate profile is adequate, this is a direct same-footprint step up delivering nearly a fifth more flight energy for a weight addition that fits within most payload budgets.

• 49g Lighter Than the Prime HN Ternary 22,000mAh — 9.1% Less Energy

The Prime HN Ternary 22,000mAh is the only cell in the 72×170mm footprint that stores more energy than the Max 20,000mAh — 81.4Wh at 294g and 10.3mm. The Max 20,000mAh stores 74.0Wh in 245g at 8.8mm — 9.1% less energy, 49g lighter, and 1.5mm thinner. For platforms where 9.1% less stored energy is an acceptable trade for a 49g weight saving and a thinner profile in the same bay, the Max 20,000mAh is the appropriate cell. It also charges at 1C consistent with the Prime HN Ternary 22,000mAh’s 2C — operators moving from the 22,000mAh Prime should note the charge rate reduction.

• The Max Series Rate Architecture — Deliberate Trade for Maximum Density

The Max series operates on a 1C charge / 3C continuous / 5C peak rate profile — the lowest of any series in the lineup. This is not a limitation to be managed but a deliberate design architecture: the 320WH/KG electrode material delivers higher energy density by optimising the cathode chemistry for energy storage rather than rate capability. The result is a cell that charges more slowly and delivers lower burst current than Prime or Volt alternatives — but stores significantly more energy per gram. For platforms where mission duration is the primary design objective and motor loads do not require peak bursts beyond 5C, the Max series delivers the best available energy per gram at this footprint. For platforms requiring 10C or 25C peak capability, the Prime or Volt series is the appropriate choice.

• New Solid-State Technology — Advanced Semi-Solid at 320WH/KG

The Max series achieves its 320WH/KG energy density through new high specific capacitance electrode materials and advanced packaging technology — described by the manufacturer as a new solid-state technology advance and industry-leading energy density in the semi-solid cell category. The semi-solid electrolyte construction reduces liquid electrolyte content versus conventional LiPo construction, providing lower risk of liquid leakage and fire, greater mechanical stability under vibration and impact loads, and more consistent internal geometry across the cell’s operational life. At the 320WH/KG density level, the semi-solid construction also provides greater electrochemical stability than a conventional liquid cell attempting to reach equivalent energy density.

• 5C Peak — 100A, 3C Continuous — 60A

The Max 20,000mAh delivers 100A peak burst and 60A continuous discharge. For mapping, logistics, and emergency response UAVs where motor loads during cruise and standard manoeuvres fall within the 3C/60A continuous range and peak events do not exceed 5C/100A, these rates are fully appropriate for the platform type this cell is designed to serve. For any application requiring higher burst rates, the Prime series at 10C peak or the Volt series at 25C peak is the correct specification match.

• 1C Charge — 20A Input, ~60 Min Full Charge

Standard 1C continuous charge delivers 20A input, fully charging the cell in approximately 60 minutes. The 1C charge rate applies to every cell in the Max series — from the entry 20,000mAh through to the 40,000mAh flagship. For field operations, three cells in rotation at 1C sustain continuous deployment without waiting — the same rotation approach used with the larger Prime HN Ternary 1C cells.

• High-Precision Manufacturing — Electrode Preparation and Stacking

Automated, high-precision electrode preparation combined with advanced stacking and encapsulation technique ensures consistent internal structure and reduces performance fluctuations across every production batch. At the 320WH/KG energy density level, manufacturing precision in electrode preparation and layer alignment directly determines both energy density realisation and long-term cell reliability.

Core Specifications

Max 3.7V High Nickel Ternary 320WH/KG — Full Capacity Family

Why Choose the 20,000mAh

Same Footprint — All 72×170mm Cells Compared Across Series

Ideal Applications