1. Is RJ 12 Volt lithium battery chemistry Lithium-Iron Phosphate or LiFePO4 or LFP ?
Yes, we are lithium battery manufacturer for over 16years, we, for
years, have been focusing on Lithium-iron-phosphate, LiFePO4, LFP,
which is the safest in performance and has the longest lifecycles
of all the li-ion battery types in the market. Our RJ 12 Volt
Lithium batteries has a lot of advantages over other battery
chemistries. Safe and reliable, no thermal runaway no catastrophic
meltdown, above all, its long cycle life, 6000cycles at 100% DOD,
under high rate of 2C discharge and 1C recharge rates, and the
round-trip of efficiency reach 99.2%, with this outstanding
performance, our RJ 12 Volt Lithium battery is now a best solution
when it comes to energy storage application.
2. Can you elaborate what BMS is, what specific functions does it
Not just 12v lithium battery needs a BMS, actually, all lithium
battery , from 12V up to 96V, all the needs a BMS for Protection.
Our RJ 12 volt lithium battery is made with a built-in BMS which
provides functions as below:
● Over charge protection
● Over discharge Protection
● Short Circuit Protection
● Over current protection
● cell Balancing function :
● RS485/RS232/Bluetooth/Wireless communication function(Optional)
3. Is Battery Management System (BMS) a must in RJ 12 volt lithium
Yes, if you take a look at the discharge diagram of LFP cell, you
will see the working voltage of it is between 2.5V to 3.65V. within
this range, the energy of a lifepo4 cells will be drawn out
totally. And if discharge and charge exceed this range, it will
cause damage to the lithium cells, which is not allowed. This is
why we always need to make a lifepo4 12V lithium battery with a BMS
inside the battery pack to protect it.
Another function that BMS will provide is the cell function. The
great performance of 12 volt Lithium batery relys on the
consistency of the lifepo4 cells inside it. The BMS will monitor
each battery cell while charging, and provide auto cell balance at
the end of charge cycle to ensure each cell will be the same
voltage after charged. There are two options for Cells balance
function, active and passive cell function. All RJ 12 volt lithium
battery will adopt the passive cell function if not specially
required, because under most of the situation, passive cell
function is already enough.
4. Why 12V lithium battery safest of all li ion battery type?
our 12V lithium battery is made of Lithium Iron Phosphate, namely,
LiFePO4 batteries, which are the safest chemistry of all kinds of
Lithium batteries, why is that? We have several internaitonal test
that proves this. UN38.3, 1.2M drop test, Destructive test, over
heat test, over current test, short circuit test, when doing this,
the lifepo4 cells are perfectly working without overheat, nor catch
on fire, nor explosion, nor expand etc. material in LiFePO4
batteries is not hazardous, no pollusion to the environmental
neither. Each lifepo4 lithium prismatic cell has a vault in the
outer shell, when unexpected air generated internally, it will
automatically open to release the extra pressure of air, this makes
sure no explosion possible.