If you are looking for the best battery alternatives for Arrma Typhon Grom and Granite Grom, then you have come to the right place. Here we will recommend 4 battery alternatives with different capacities, discharge powers, and budgets, all of which can extend the running time and improve the bashing performance of both mini scale RC vehicles. Based on measurements:
- Typhon Grom’s battery tray size is appro. 110 x 40 mm (L x W).
- Granite Grom’s battery tray size is appro. 102 x 40 mm (L x W).
- A lot of people mistakenly think that EC2 is compatible with the IC2 connector! It’s not; we tried shoving it in, and there’s no way. So, I suggest you use an adapter or change to other connector.
Notice: The following recommended 2S LiPo batteries are suitable for the brushed versions of the Typhon Grom and Granite Grom. If you have the 3s brushless version, please check out this article [ Best Replacement 3S Battery for Typhon Grom 223S BLX ].
Best Performance Battery
Yowoo 2200mAh 2S 130C 7.4V Lipo with EC3 Connector
Brand: Powerhobby
Voltage: 7.4V
Capacity: 2200mAh
Discharge Rate: 130C
Connector: EC3 Plug
Size: 88 x 36 x 20 mm
Weight: 132g
Highlight: Long Running Time | High C-rate
It has an increased capacity of 800mAh compared to stock batteries, which means almost half of the runtime can be extended.
In addition, in the actual run test, this battery’s power output is large and stable because the C-rate is 90C higher than the stock battery, which means that it increases the max. discharge power, which improves the acceleration and responsiveness of these small scale RC off road, and you can clearly feel the difference in throttle control.
The 50C allows the motor to receive a stable input voltage throughout its operation, keeping it running efficiently even under frequent and fast throttle control. Therefore, if you want to improve the bashing performance of your Typhon Grom or Granite Grom, then this battery is the best choice.
Best Budget Battery
CNHL 2200mAh 2S 70C 7.4V Lipo with XT60 Connector
Brand: CNHL
Voltage: 7.4V
Capacity: 2200mAh
Discharge Rate: 70C
Connector: Deans Plug
Size: 108 x 35 x 18 mm
Weight: 120g
Highlight: Budget-friendly | Long Running Time | High C-rate | Durable
Overall, this battery strikes a good balance between running time, discharge power, and budget. In addition, CHNL batteries are known for their durability, typically lasting over 200 uses.
2 Best Long Run Time Batteries
AMZZN 3500mah 2S 30C 7.4V Lipo with Deans Connector
Brand: AMZZN
Voltage: 7.4V (2S)
Capacity: 3500mAh
Discharge Rate: 30C
Connector: T Plug
Size: 96 x 34 x 20 mm
Weight: 117g
NHX 2800mAh 2S 50C 7.4V Lipo with EC2 Connector
Brand: NHX
Voltage: 7.4V (2S)
Capacity: 2800mAh
Discharge Rate: 50C
Connector: EC2
Size: 94 x 30 x 26 mm
Weight: 141g
Highlight: Long Running Time | High C-rate
If you’re looking to extend run time, these lipos are an excellent choice. For the Arrma Typhon Grom and Granite Grom, these 2S LiPos outclass nearly all competitors in capacity. Compared to stock battery, they deliver over 100% more run time. Additionally, with impressive discharge power, the C-rate provides the power needed to keep up with the demands of the Grom’s brushed motors.
These replacement lipos fit not only for the Arrma Grom series but also for smaller-scale vehicles like the Losi NASCAR and Mini Maxx.
Common Questions
Q1: Can they run 3s lipo batteries with the stock brushed system?
Yes, provided the throttle setting is set to 75% or 50% to prevent the motor from overheating due to too many watts. What you need to know is that limiting the throttle will result in the 3s lipo not producing as much watt as a 2s lipo running at 100% throttle.
Q2: What distinguishes an EC2 from an IC2 connector?
In short, the IC2 and EC2 are compatible and the IC2 is a smart version of the EC2, however, due to its low price, the EC2 is an ideal replacement for the IC2.
Q3: Are Spektrum chargers compatible with other brands of batteries?
No, it is not.
