Batteries for airsoft guns

A good battery is the heart of every electric airsoft gun (AEG). Choosing the right battery affects not only the power of the replica, but also the safety and service life of the equipment. In this article, we will compare the most popular types of batteries used in airsoft: LiPo, NiMH, and less popular variants, suggesting which option will work best for your game.

Basic types of batteries in ASG

1. LiPo (Lithium Polymer)

• Voltage: most often 7.4 V (2S) or 11.1 V (3S)

• Capacity: from 1100 mAh to 3000 mAh (and more)

• Advantages: Low weight, high power, and fast discharge cycle → fast shots and powerful AEGs, compact size — easy to fit into various replicas

• Disadvantages: Requires careful handling (overloading or puncturing the cells can lead to fire), balance chargers should be used, sensitive to storage — must be stored in a safe place, preferably in LiPo bags

2. NiMH (Nickel-Metal Hydride)

• Voltage: typically 8.4 V (7 AA cells) or 9.6 V

• Capacity: from 1600 mAh to 3000 mAh

• Advantages: Very safe to use — virtually no risk of fire, easy to charge with a standard NiMH charger, longer cell life with moderate use

• Disadvantages: Heavier than LiPo, slower discharge cycle → slightly lower rate of fire and motor torque compared to LiPo, larger size — sometimes difficult to fit into short stock M4 replicas

3. Other types

• LiFe (Lithium Iron Phosphate) – an alternative to LiPo, more stable and chemically safe, but with lower instantaneous power.

• NiCd (Nickel-Cadmium) – practically no longer used, heavy and with low capacity compared to NiMH.

Which battery should you choose for your replica?

• For sports/CQB AEGs: 7.4 V LiPo – lightweight, fast, compact, ideal for short rifles and fast rounds.

• For classic AEG / long rifles: NiMH 8.4–9.6 V – simpler, safer, and sufficient for most M4 / AK replicas.

• For milsim / long sessions: larger LiPo 11.1 V or NiMH 3000 mAh – longer playing time and more power during continuous use.

                               Practical advice

1. Never charge LiPo batteries with a standard NiMH charger – there is a risk of explosion.

2. Store LiPo batteries in a safe container or LiPo bag, preferably at room temperature and partially charged (~50-60%).

2. Make sure to regularly discharge and charge NiMH batteries – this will prevent the “memory effect” and extend their service life.

3. Choose batteries compatible with the power of your replica – e.g., high-current LiPo for more powerful AEGs requiring high current.

4. Be mindful of space in replicas – short stocks often require flat or mini LiPo batteries.