Arrma mini scale desert truck — Mojave Grom’s battery tray size is approximately 130 x 38mm (L x W). If you’re looking to go beyond the power provided by the stock battery for this RC truck, you’re in the right place. Here, I’ll recommend 4 of the best replacement 2s LiPo batteries. These batteries not only extend the runtime but also enhance the responsiveness and burst power. You can choose one based on your budget and personal preference.
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 ohter connector.
Notice: The following recommended 2S LiPo batteries are suitable for the Mojave Grom brushed version. If you have the brushless version, please check out this article [ Best Replacement 3S Battery for Mojave 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
The 130C discharge rate of this battery significantly enhances the performance of the Mojave Grom, providing ample current for the equipped 380 brushed motor. You’ll particularly notice the difference in responsiveness when accelerating and making sharp turns with the transmitter.
Depending on driving conditions, this 2200mAh battery can extend the runtime by 10 to 20 minutes compared to the stock battery. For me, two of these batteries are enough to keep the fun going.
Best Budget Battery
CNHL 2200mAh 2S 70C 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
CNHL is a well-known brand, and this CNHL battery is also suitable for the Arrma Mojave Grom. Compared to other batteries, it stands out as an overall best choice, offering improved run time and C-rate, along with great durability. Most importantly, it’s a budget-friendly option.
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 Run Time | High C-rate
These batteries significantly boost run time to more than twice that of stock batteries.
Compact in size, they’re perfect not only for the Arrma Grom series but also for smaller vehicles like the Losi NASCAR and Mini Maxx.
Frequently Asked Questions
Q1: Hardcase vs. Softcase, Which is Better?
During use, LiPo batteries are susceptible to damage from impacts. Hardcase batteries provide protection for the battery internals, making them more durable. On the other hand, Softcase batteries are lighter and more compact, allowing for greater capacity.
Q2: What is the RC Smart Battery?
RC smart batteries, such as those from Spektrum and Gens ace G-Tech, offer advanced features and information, including automatic battery identification, data storage, and logging capabilities.
Q3: What is the C-rating?
The C-rating typically refers to the battery’s discharge rate. The higher the C-rating, the greater the discharge power the battery can provide.
