Free Economy ShippingProduct Specifications for EarthX ETX900-VNT Vented Lithium Aircraft Battery
| BM Part #: | ETX900-VNT |
|---|---|
| Brand: | EarthX |
| Voltage: | 13.2 Volt |
| Cold Cranking Amps: | 400 CCA / 840 PCA |
| Capacity: | 15.6 Ah |
| Type: | LiFePO4 |
| Length: | 6.5" |
| Width: | 3" |
| Height: | 6.6" |
| Shipping Weight: | 5.40Lbs |
| Warranty: | 2 Year Factory Direct |
| Product Manual: | Download |
| Datasheet: | Download |
What's in the box:
- (1) ETX900-VNT
- (2) 6mm screws
- (2) elbows for tubing
- Foam for proper fitment
- Vented Thermal Runaway Containment: Safely routes gases outside the aircraft for worry-free in-cabin mounting.
- 11+ Lbs Lighter: Instantly reduces weight compared to a standard lead-acid aircraft battery.
- 400 CCA / 840 PCA: Delivers more than double the cranking power of comparable lead-acid batteries.
- Built-In Battery Management System: Protects cells from overcharge, over-discharge, and short circuits automatically.
- LED Fault Indicator: Alerts you to battery health and charge status right from your control panel.
- Low Self-Discharge: Holds a charge for over six months even when fully disconnected.
Product Description
Cut the Weight. Keep the Power.
If you've been hauling around a heavy lead-acid battery in your experimental build, you already know the trade-off: reliable power, but a real hit to useful load. The EarthX ETX900-VNT solves that problem without asking you to sacrifice a thing.
This 13.2-volt lithium battery delivers 400 cold cranking amps and 840 peak cranking amps, more than double what most lead-acid aircraft batteries offer, while weighing in at just 5.4 lbs. Swap out your old battery and you'll instantly shed 11+ pounds of dead weight, freeing up payload for fuel, gear, or a passenger.
Built for In-Cabin Peace of Mind
The "VNT" in the name stands for vented, and it's the whole reason this battery exists. Unlike a standard lithium battery, the ETX900-VNT includes a built-in thermal runaway containment system with two vent ports designed to route any gases safely outside the aircraft instead of into your cabin.
That means you can mount it up front, behind the seat, or anywhere else that makes sense for your build, without the safety concerns that come with an unvented lithium pack. It meets DO-311a testing requirements for lithium battery use in aircraft (note: this is not a TSO or PMA part number).
Smart Protection, Every Flight
A built-in battery management system constantly monitors cell balance and shuts things down before damage occurs, whether that's from over-discharge, overcharge, or a short circuit. An LED fault indicator lets you keep tabs on battery health right from your panel.
Left sitting for a while? No problem. This battery holds its charge for over six months when fully disconnected, so it's ready when you are.
Ready to Lighten Your Load?
Whether you're building new or upgrading from a tired lead-acid battery, the ETX900-VNT gives you more cranking power at a fraction of the weight, with a design built specifically for safe in-cabin use. Order yours today and enjoy free standard shipping to the contiguous US.
Typical Charging Times
| Charging Amps | Charging Time |
|---|---|
| 1 amp | 16 hours |
| 5 amp | 3 hours |
| 20 amp | 45 min. |
Frequently Asked Questions
Will the ETX900-VNT work with my aircraft?
A: This battery is designed for aircraft with an alternator or generator rated at 80 amps or less and an engine of 550 cubic inches or smaller. Check your alternator's output rating before ordering to make sure it's a match.
What's the difference between the ETX900 and the ETX900-VNT?
A: Both batteries share the same cranking power, capacity, and battery management system. The ETX900-VNT adds a thermal runaway containment case with two vent ports, making it the safer choice for in-cabin installations.
Does this battery come with the vent tubing and LED indicator?
A: The battery ships with mounting screws, tubing elbows, and foam for a proper fit, but the vent tubing itself and the panel-mount LED fault light are sold separately.
Will this battery fit in my existing battery box?
A: The ETX900-VNT measures 6.5" L x 3" W x 6.6" H, which is smaller than most lead-acid aircraft batteries. You may need an EarthX-specific battery box or mount to get a secure, properly padded fit.
How long does it take to charge?
A: Charging time depends on your charger's output: about 45 minutes at 20 amps, 3 hours at 5 amps, or 16 hours at 1 amp.
