GNB 300mAh 3S LiPo Battery
GNB 300mAh 3S LiPo Battery
This GNB 300mAh 3S LiPo battery is built for antweight builds where every gram counts. At 80C, it delivers the current your drive and weapon systems need in one of the smallest footprints in the GNB lineup, with a 1C to 5C charge rate so you’re not locked into one charger speed. LiHV chemistry packs more usable energy into the same size and weight as standard LiPo. The XT30U-F connector plugs straight into the ESCs you’re already running. Sold individually.
$13.99
28 in stock (can be backordered)
GNB 300mAh 3S LiPo Battery
GNB uses LiHV (high-voltage) LiPo chemistry in this 300mAh 3S pack, charging each cell to a higher voltage than standard LiPo. That translates into more usable energy without the size or weight increase a bigger pack would require, and for an antweight build running close to a class weight limit, that difference can decide whether a heavier weapon or extra armor makes the final build.
It’s also the smallest capacity pack in the GNB HV lineup ItGresa stocks, built for antweight combat robots where minimizing dead weight matters as much as raw power.
White XH-JST 4P charge connector and yellow XT30U-F discharge connector round out a pack built to plug straight into the ESCs and chargers already common in antweight combat robotics. At 28g, it’s nearly as light as the lightest pack in our GNB lineup, without giving up the punch an 80C discharge rate delivers.
Specs at a Glance
300mAh capacity, 3S1P configuration, 11.4V nominal, 80C continuous discharge, with a charge rate of 1C to 5C so you’re not locked into a single charger speed. White XH-JST 4P charge connector, yellow XT30U-F discharge connector, ready to plug straight into the ESCs you’re already running. Measures 53.0mm x 17.0mm x 18.0mm (L x W x H) and weighs 28.0g.
Pair this pack with a charger rated for LiHV chemistry, like our C6D Battery Charger, which covers 2-4S packs and handles this battery without issue. Always follow standard LiPo storage and charging safety practices, and store it at a safe voltage when it’s not in regular use. Sold individually.
Safety Warning:
LiPo batteries carry real risk of fire if mishandled. Always charge on a fireproof surface, never leave a pack charging unattended, and use a charger rated for LiHV chemistry. Retire and dispose of any punctured, swollen, or otherwise damaged pack immediately.
Features
- 80C continuous discharge for antweight drive and weapon systems
- LiHV chemistry packs more usable energy into the same weight
- Smallest capacity pack in the GNB HV lineup ItGresa stocks
- 1C to 5C charge rate flexibility, not locked to one charger speed
- Compact footprint at 53mm x 17mm x 18mm and just 28g
- XT30U-F connector plugs straight into your existing ESC setup
| Spec | Value |
|---|---|
| Capacity | 300mAh |
| Configuration | 3S1P |
| Voltage | 11.4V nominal (vs 11.1V nominal for non-HV batteries) |
| Discharge Rate | 80C continuous |
| Charge Rate | 1C to 5C |
| Chemistry | LiHV (High-Voltage LiPo) |
| Charge Connector | White XH-JST 4P |
| Discharge Connector | Yellow XT30U-F |
| Length | 2.09in (53.0mm) |
| Width | 0.67in (17.0mm) |
| Height | 0.71in (18.0mm) |
| Weight | 0.99oz (28.0g) |
What charger do I need for this battery?
Use a charger rated for LiHV (high-voltage) LiPo chemistry. A standard LiPo charger set to standard voltage will undercharge this pack and leave capacity on the table. Our C6D Battery Charger is LiHV-capable and covers 2-4S packs, so it's a solid match for this battery.
How should I store this battery when I'm not using it?
Store LiPo batteries at storage voltage (around 3.8V per cell) when they're sitting for extended periods, in a fireproof LiPo bag or container, away from extreme heat. Check out our combat robotics safety guide for our full LiPo safety guidance.
What do I do if the battery gets punctured or swells?
Retire and dispose of any damaged or swollen LiPo pack right away. Never charge or use a battery that's been punctured, swollen, or otherwise damaged.
Why is this rated 11.4V instead of the usual 11.1V for 3S?
This pack uses LiHV (high-voltage) LiPo chemistry, which runs at a higher per-cell voltage than standard LiPo. Standard 3S is 11.1V nominal; LiHV 3S is 11.4V nominal. Make sure your charger is rated for LiHV or you'll undercharge the pack.
