E T X S E R I E S L I T H I U M B A T T E R I E S
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level. This ensures that the charge level of all the cells remains equal, even with the high
discharge (> 100Amps) and charge current (>10Amps) of your vehicle.
A cell can be permanently damaged if over-charged (over-voltage) or over-discharged
(drained) just one time. The BMS has circuitry to disconnect the battery from the
load/charging system (your vehicle) if the voltage exceeds 15.5 volts (an over-charge
condition). The ETX Hundred Series batteries have enhanced over-charge protection; see
the ETX - Hundred Series section below for more details. The BMS also disconnects the
battery from the load if it is drained to less than 5% remaining charge (an over-discharge
condition). An over-discharged battery typically has a voltage less than 11.5V. If the BMS
disconnects the battery, the voltage reading of the battery will be zero volts. Excessive
cranking protection logic includes temperature monitoring to limit “high current use”
(engine cranking) to 10 -30 seconds in any 60 second period. If a low impedance load is
connected to the battery, which causes the battery volts to instantaneously dip below 6V, the
battery will disconnect from the load to protect the cells and BMS from damage (short
circuit protection). The ETX series is designed for short circuit protection > 1000 amps.
Our lithium cells together with our BMS create the safest lithium battery on the market, with
more starting power, and longer life.
The features of our ETX Lithium Batteries;
Flexible battery connection – with center mounted terminals and terminal adapters,
the same batteries can be used in either left or right side polarity applications.
Longer Storage Life –there is no need to float charge in the off season
Environmentally Friendly – no hazardous chemicals and it can be recycled
Fast Charge – can be fully charged in less than an hour (if charged at the maximum
recommended charge rate )
Maintenance Free!
No Special mounting direction (could even be mounted up-side-down)
Will Not Freeze or Boil Over – Lithium batteries are dry cell technology and will not
freeze or boil ever
ETX – Hundred Series
The ETX “Hundred Series” was specifically designed for the experimental aircraft market
(models include the ETX680C, ETX680, ETX900, ETX1200). Only the ETX “Hundred
Series” battery models are recommended for use as the primary aircraft battery (starter
battery). In addition to the features found in the ETX series motorsports batteries, critical
electronic circuits are redundant, the over-charge protection is enhanced and fault indication
is included.
All components associated with main electronic battery disconnect are redundant. The
built-in redundancy ensures that no single point failure results in the battery unintentionally
disconnecting. The design aligns with the requirements for a FAA approved lithium
battery as per RTCA performance specification DO-311.
