25
NOTICE
Temperature compensation must be disabled.
9.3.5 Charging with Alternators
•
Not recommended.
For the reasons stated below, it is not
recommended to use an alternator as a charge source.
•
It is possible
. Charging with an alternator is possible. However, use
one of the following is REQUIRED:
•
Smart voltage regulator, or DC/DC converter
NOTICE
If the alternator charge voltage or current is too high, the BMS will protect the battery
by disconnecting the battery from the system. A large voltage spike may also be
created in a one-battery system, potentially damaging both the alternator and BMS.
NOTICE
LiFePO
4
batteries are so efficient the alternator may burn itself out over extended
periods of output at or close to peak current.
9.4 Charging Profile
Standard open-loop charging for the battery should include both Bulk and
Absorption phases. Refer to
Table 2-1
DLP Electrical Specifications
for open-loop
charging parameters.
Refer to the appropriate Application Note available from www.
discoverbattery.com for closed-loop parameter setup and integration with
specific brands of solar inverter-chargers, solar charger controllers, mobile
inverter-chargers, and industrial chargers.
100% SOC
Bulk Vdc
I Max
I Min
200 milliamps required
for balancing current
Terminate at 2% - 3% of
battery rated capacity
U1 Max
Absorption & Balancing
CURRENT
Absorption
Bulk
U2 Float
Float
Figure 14. Charge Graph.
