Specna Arms LiPo 7.4V 600mAh 20/40C Battery for PDW - T-Connect (Deans)


A compact replica deserves a battery that delivers maximum performance without taking up unnecessary space. The Specna Arms LiPo 7.4V 600mAh 20/40C Battery for PDW – T-Connect (Deans) has been specially developed for airsoft replicas with limited battery space, such as PDW platforms and compact CQB builds. Thanks to the efficient Deans (T-Connect) connector and the high discharge rate, this LiPo battery delivers a stable power supply and a fast trigger response in an exceptionally compact format.
Why choose a 7.4V LiPo?
For many airsoft players, a 7.4V LiPo battery strikes the ideal balance between performance and reliability. Compared to a traditional NiMH battery, a LiPo delivers a more consistent voltage, a faster trigger response and a more efficient power output.
For standard AEGs and replicas without extensive internal upgrades, a 7.4V LiPo is often the safest choice. You’ll benefit from better performance without the extra strain that an 11.1V LiPo can cause.
Compact size for PDW platforms
In many PDWs, compact M4s and CQB replicas, the space available for a battery is limited. This Specna Arms LiPo has been specially designed to fit into small battery compartments and PDW buffer tubes.
Measuring just 7.5 cm in length and featuring a slim design, this battery is easy to install without compromising on performance.
600mAh capacity for compact builds
With a capacity of 600mAh, this battery is ideal for shorter match days, training sessions or as a spare battery. Thanks to its light weight, your replica remains well-balanced, whilst you still benefit from the advantages of modern LiPo technology.
For players who bring several batteries with them to a skirmish, this is an excellent, space-saving solution.
What does 20/40C mean?
The 20C continuous discharge rating ensures a stable power supply during normal use, whilst the 40C peak discharge provides temporary extra power when the replica requires it.
As a result, the motor responds instantly to every trigger pull and the gearbox continues to operate smoothly, even during rapid-fire bursts.
The advantages of a Deans (T-Connect) connector
More and more airsoft players are opting for Deans connectors because of their more efficient power transfer. Compared to Mini Tamiya connectors, a Deans connector offers lower electrical resistance, meaning less energy is lost between the battery and the motor.
This results in a more immediate trigger response, less heat build-up and more reliable operation of your replica.
Do check whether your replica is fitted with a Deans connector or has been modified for this purpose.
Reliable LiPo technology
LiPo batteries are renowned for their excellent capacity-to-size ratio. Despite their compact dimensions, they deliver a high power output and maintain a stable voltage throughout virtually the entire discharge cycle.
Furthermore, LiPo batteries do not suffer from the memory effect. This means you can recharge the battery at any time without it affecting its performance. When used correctly, a high-quality LiPo battery will last for an average of 500 to 700 charge cycles.
Safe use and maintenance
Always use a suitable LiPo balancer charger to charge the battery safely. Ensure that the voltage never falls below 3.0 volts per cell and never charge the cells beyond 4.2 volts per cell.
If you are not going to use the battery for a long time, storing it at around 3.8 volts per cell (storage charge) is the best option. This will preserve its capacity and significantly extend the battery’s service life.
Compatibility
This battery is suitable for replicas with a Deans (T-Connect) connector and limited battery compartment space, including:
- The PDW platform
- Compact M4 AEGs
- CQB-builds
- Replicas with small buffer tubes
- Airsoft replicas with a Deans connector
- Diverse Specna Arms AEG's
Always check that your replica has enough space for this battery.
Key features
- 7.4V LiPo for reliable performance and a fast trigger response.
- 600mAh capacity – ideal for compact replicas and as a spare.
- 20°C continuous / 40°C peak discharge for stable current output.
- Deans (T-Connect) for more efficient power transmission.
- Compact size, specially designed for PDW platforms.
- No memory effect and low self-discharge.
- Average service life of 500 to 700 charge cycles when used correctly.
Common mistakes
A common mistake is charging a LiPo battery with a standard NiMH charger. Always use a suitable LiPo balancer charger to prevent damage to the battery cells.
In addition, a LiPo battery is sometimes allowed to discharge completely. This can cause irreparable damage to the battery cells. You should therefore preferably use a LiPo alarm or a MOSFET with low-voltage protection.
Furthermore, never store the battery fully charged or fully discharged for long periods; always keep it at storage charge.
Frequently Asked Questions
Is this battery suitable for all AEGs?
No. This LiPo battery is suitable for airsoft replicas with a Deans (T-Connector) connection and sufficient space for a compact PDW battery. Always check the available battery compartment space and connection on your replica.
Why choose a 7.4V LiPo?
A 7.4V LiPo offers an excellent balance between performance, reliability and service life. This makes this battery ideal for most standard AEGs and ensures consistent performance without placing unnecessary strain on the internal components.
What is the advantage of a Deans connector?
A Deans connector has lower electrical resistance than traditional Tamiya connectors. This allows current to be transferred more efficiently, resulting in better performance and a faster trigger response.
Is 600mAh enough for a full day of play?
For short days of play, training sessions or CQB competitions, a capacity of 600mAh is often sufficient. If you’re taking part in a longer skirmish or event, it’s a good idea to bring a spare battery.
How long does a LiPo battery last?
When used correctly, charged with care and stored at the correct voltage, a LiPo battery lasts for an average of 500 to 700 charge cycles.
With the Specna Arms LiPo 7.4V 600mAh 20/40C Battery for PDW – T-Connect (Deans), you’re choosing a compact and reliable power source that has been specially developed for modern PDW and CQB platforms. Thanks to its compact size, efficient Deans connector and consistent performance, you’ll get the most out of every skirmish or training session.

Product specifications
- Article number
- SPE-06-026854
- Brand
- Specna Arms
- Type
- LiPo
- Kind
- Battery
- Voltage
- 7.4V
- mAh
- 600mAh
- C Value
- 20/40C
- Connector
- T-Connect (Deans)
- Dimensions
- 7.50 x 1.70 x 1.50















