Lithium-Ion (Lifepo₄) Batteries; Low Current Mode - Victron energy Blue Smart IP65 12/4 Manual

d) Some battery charger manufactures recommend pulse charging to
reverse sulfation. However, most battery experts agree that there is
no conclusive proof that pulse charging works any better than
constant voltage charging. This is confirmed by our own tests.
2.10 Lithium-ion (LiFePO₄) batteries
Li-ion batteries do not suffer from sulfation.
But Li-ion batteries are very sensitive to under voltage or over
voltage².
Li-ion batteries therefore often have integrated cell balancing and
under voltage protection (UVP) circuitry.
Some reverse polarity protected chargers will not recognize a
battery when the UVP has tripped.
The Blue Smart Charger will however automatically reset the
UVP and start charging.
Important note:
NEVER attempt to charge a Li-ion battery when its
temperature is below 0°C.

2.11 Low current mode

Some lead acid batteries can overheat if charged with a current
exceeding 0,3C (C is the capacity in Ah. A 12Ah battery for
example should not be charged with a current exceeding
0,3 x 12 = 4A). The low current mode (charge current limited to
4A or less, see technical specifications) should therefore be used
to charge low capacity lead-acid batteries.
¹ For more information about batteries, please
refer to our book 'Energy Unlimited' (downloadable from
www.victronenergy.com),
or
http://batteryuniversity.com/learn/article/sulfation_and_how_to_pr
event_it
² For more information about Li-ion batteries please see
http://www.victronenergy.com/batteries/lithium-battery-12,8v/
5