Q1: Why do FPV drones in Ukraine require 100C Li-po batteries?

A: “C-rate” is the discharge speed. FPV drones carrying heavy payloads require massive, sudden bursts of energy to maneuver. A 100C battery can discharge its entire capacity in under a minute safely, providing the extreme power required without suffering voltage sag.

Q2: What is “Voltage Sag” and why is it dangerous for drones?

A: Voltage sag occurs when a low-quality battery cannot deliver the power requested by the drone’s motors, causing a sudden drop in voltage. In heavy-lift UAV applications, severe voltage sag causes the drone to lose altitude or crash mid-flight.

Q3: Can a global factory ship lithium batteries into Ukraine during the current logistical disruptions?

A: Yes. Premier suppliers like Hanery ship UN38.3 certified bulk freight into major European transit hubs (like Warsaw, Rzeszów, or Košice). From there, established ground logistics forward the shipments directly across the Ukrainian border.

Q4: What is Internal Resistance (IR) matching, and why does Hanery do it?

A: In a 6S (6 cells in series) drone battery, if one cell has a higher internal resistance than the others, it will overheat and drain faster, ruining the pack. Hanery strictly tests and “matches” the IR of every cell before assembly to ensure flawless performance.

Q5: Should we use Li-po or LiFePO4 for Portable Power Stations (PPS)?

A: For Portable Power Stations meant for emergency backup and communications (Starlink), LiFePO4 (Lithium Iron Phosphate) is generally preferred for its extreme safety and long cycle life (3,000+ cycles), though high-capacity Li-po is used when absolute minimal weight is required.

Q6: What is the difference between a Ukrainian battery manufacturer and an assembler?

A: Ukraine does not manufacture raw Li-po pouch cells. Local companies are highly skilled assemblers who import raw cells from factories like Hanery and weld them into finished packs with BMS boards locally.

Q7: Do FPV drone batteries use a discharge BMS?

A: Usually, no. To achieve 100C+ discharge bursts, FPV batteries are wired directly to the drone’s ESCs (Electronic Speed Controllers). A standard BMS would restrict the current and cause a mid-air shutoff. They only use balance leads for safe charging.

Q8: What does “6S” mean in drone Li-po packs?

A: “6S” means 6 Li-po cells are wired in Series. Since one cell is nominally 3.7V, a 6S pack operates at 22.2V (25.2V fully charged), which is the standard high-voltage requirement for high-performance UAVs in Ukraine.

Q9: How do top-tier direct factories prevent Li-po battery swelling under heavy load?

A: Heavy loads generate massive heat. Top factories prevent swelling (gas generation) by utilizing premium nanomaterials, high-conductivity copper tabs, and executing cell lamination in strictly humidity-controlled cleanrooms.

Q10: What is the current manufacturing lead time for bulk B2B Li-po orders from Hanery?

A: Hanery operates with extreme agility. Factory engineering and mass production currently take 2 to 4 weeks, ensuring Ukrainian OEMs receive high-spec components as rapidly as possible to meet urgent demands.