7
Low and high temperature protection,
heating, charging & discharging
Lithium cell balancing
Protection features
Operation mode/compatible
external batteries
Connection possibilities
Max. parallel LE300s
Temp. sensor prevents lithium battery charge
under -5 °C or above 55 °C cell temp. Char-
ging starts once cell temp. is higher than -5
°C. Device has an integrated heating that is
active between -20 °C and 10 °C cell temp.
Discharge possible between -20 °C and 60
°C cell temp. At cell temp. below -20 °C and
over 60 °C system is running in pure lead
acid mode for higher battery lifetime.
Battery management inclusive balancer
Overcurrent, overvoltage, short circuit, deep
discharge, wrong polarity protection.
Works in combination with any 12 V lead
acid battery & lead acid charge controller.
Packs can be connected in parallel with each
other (see exemplary parallel combination in
the table below).
In standard version, a maximum of 24
LE300 can be connected only in parallel,
higher quantities possible after consulting
BOS partner.
Exemplary
parallel combination
Qt. in parallel
Total nominal voltage
Total lithium capacity
Continuous charging current to LEs
Continuous discharging current from LEs
Recommended lead acid capacity
(not included)
Parallel
4
12.8 VDC
102.4 Ah/1.3 kWh
Max. 50 A
Max. 50 A
4 – 12 kWh
vt
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