Other Batteries (Li-Ion, NiMH)

Although LiPo batteries dominate the FPV world, other power technologies also find their place in RC modeling, electronics, and special applications. In this category, you'll find alternative battery types, primarily the popular Lithium-Ion (Li-Ion) cells and packs.

The main types of batteries in this section include:

• Lithium-Ion (Li-Ion) Batteries: Most often in the form of cylindrical 18650 or 21700 cells. They feature very high energy density (Wh/kg), making them an ideal choice for building packs for Long Range FPV drones, where maximum flight time is crucial. However, they have a lower discharge rate (C-rating) than LiPo, offering less peak power. They are also often used to power FPV goggles, RC radios, and in DIY projects. Our offer includes cells from the renowned Panasonic brand, among others.
• Nickel-Metal Hydride (NiMH) Batteries: Older technology, heavier and with lower energy density than Li-Ion/LiPo, but very durable and safer to use. Sometimes found powering RC transmitters, receivers, or older models.
• Nickel-Cadmium (NiCd) Batteries: Even older technology, rarely used in FPV/RC today due to lower performance and memory effect.

Always ensure you know what type of battery your device requires before choosing.

Choosing a non-LiPo battery depends mainly on the specific application:

• Choosing Li-Ion Batteries:
  • Cell Type (e.g., 18650 vs 21700): 21700 cells typically offer higher capacity or higher discharge current for similar weight compared to the popular 18650.
  • Capacity (mAh): Select based on project duration requirements, considering weight. Li-Ion cells have high energy density, allowing for high-capacity packs at relatively low weight.
  • Max Discharge Current (A): This is a very important parameter for Li-Ion! Check the cell's specification for the maximum continuous discharge current (given in Amps, e.g., 10A, 20A, 30A) and ensure it is sufficient for your application (e.g., the current needed for cruise flight in a Long Range drone). Exceeding this current is dangerous!
  • Voltage and Pack Configuration: Li-Ion cells have a nominal voltage of approx. 3.6V-3.7V. They are often used to build custom packs (e.g., 4S1P, 6S1P, 6S2P). Ensure the final pack voltage matches the device requirements. Multi-cell packs require balancing.
  • Protection Circuit (PCM): Some ready-made Li-Ion packs have built-in protection. Standard 18650/21700 cells lack this and require caution and often an external Battery Management System (BMS).
• Choosing NiMH/NiCd Batteries: (If applicable) Match voltage and capacity to the device requirements (e.g., RC transmitter). Remember they require different chargers and settings than lithium batteries.

Li-Ion technology is an excellent choice where runtime and low weight are priorities, rather than necessarily maximum instantaneous power.

Safety is key when working with any type of battery! Although Li-Ion and NiMH are generally considered safer than LiPo, they still require caution.

• Charging: ALWAYS use a charger and settings specifically designed for the battery chemistry (Li-Ion mode, NiMH mode, etc.). For multi-cell Li-Ion packs, using a balance charger is necessary. NEVER leave charging batteries unattended. Charge in a safe place. Do not charge damaged cells.
• Usage: Avoid over-discharging – check the safe end voltage for your cell type (for Li-Ion it's typically lower than LiPo, e.g., 2.5V-3.0V per cell, but always check the specs!). Protect batteries from physical damage, short circuits, and overheating.
• Storage: Li-Ion batteries store best partially charged (approx. 40-60% capacity, voltage around 3.6-3.7V per cell – check cell manufacturer recommendations). NiMH cells are less demanding in this regard. Store in a cool, dry place.
• Disposal: Never throw batteries in regular trash! Each type requires proper disposal. Take them to a designated battery collection point or e-waste facility.

Have doubts about choosing or safely using Li-Ion or NiMH batteries? We are happy to help!

Need advice? Write to us: Contact Us