12V Lifepo4 200Ah Elektron Koonect Bms 200A Lithium Battery

IS THE LiFePo4 BATTERY SAFE?

Lithium batteries with composition LiFePo4 are extremely safe today, at least on a par with normal lead-acid, provided they are used with due care, just as any accumulator should be used. Even a normal lead battery can create very serious problems if used incorrectly, without fuses and in risky conditions.

Modern LiFePo4 batteries incorporate a BMS (Battery Management System) mandatory for this type of battery: it governs the charge and discharge, regulating voltages and currents, protects against short circuits, checks the operating temperature, automatically balances the charges and discharges of the various cells.

I HAVE HEARD ABOUT HOMEBUILT LiFePo4 BATTERIES.

Today it is possible to buy the various components and build a high performance battery, spending less than a known brand.
Choosing a battery to compose, i.e. without its dedicated BMS, may be a more convenient choice. cheap, but certainly less safe especially if you don't have the appropriate knowledge: the currents involved are very high and installation in a camper represents a further source of risk. For this we recommend buying LiFePo4 batteries with integrated BMS, like this one, but if you have the necessary skills, it can be a valid alternative. often the difference is really minimal.

WHAT ARE THE REAL ADVANTAGES OF THESE BATTERIES?

Using a LiFePo4 can change the experience of "electric" life on the Camper.
First of all, their low internal resistance allows them to be charged with very strong currents.
If you have an energy source, for example the 'alternator with a special 100A Battery to Battery Charger, for example, you could charge the LiFePo4 from scratch in just one hour of travel (if it is a LiFePo4 with a 100A charging BMS), or in thirty minutes if you already had it' charged to 50%. A huge advantage.
Conversely, the usable capacity: it is possible to request the same current from the battery, without voltage sag problems, up to almost 100% discharge.
This means that you can use a power inverter, without any problem (air conditioner, coffee machine, hair dryer, etc.)
Another huge advantage, the life cycles. a normal AGM after 500 cycles begins to show signs of "fatigue", while LiFePo4 last up to 10 times as much (5000 cycles with 50% depth of discharge)
To all this, we must add the weight, a good 100Ah AGM weighs about 30 kg, a LiFePo4 about 11/13 kg.

HOW CAN I RECHARGE THIS BATTERY?

LifePo4 batteries are charged substantially with the same sources as normal lead batteries, but with different parameters.
For this, the solar regulator must have the preset configuration for LiFePo4 lithium batteries, or the correct parameters in the solar regulator will have to be entered manually.

The same goes for the 220V battery charger, it must have the setting for this type of battery.
If the LiFePo4 (Lithium) setting is not available the old charger CAN NOT BE USED.

These are the typical values to be set on the solar regulator manually, if there is no automatic configuration for LiFePo4:
Absorption voltage: 14.2 Volts
Absorption time: as low as possible, zero is better
Equalization: if possible, delete this function, if not possible, set 14.4V
Bulk voltage: 14.0-14, 6 V.
Float voltage: 13.5V (in case of prolonged stop with recharging, lower to 13.3/13.4)
High Voltage Disconnect : 14.8 V
Functions such as desulphation and temperature compensation will then be eliminated.

CAN I CONNECT THE BATTERIES IN PARALLEL?

These batteries are designed to be connected directly in parallel to each other (only with batteries of identical type and series), with the maximum number indicated in the specifications. NO PARALLERATORS, SWITCHES OR THE LIKE SHOULD NOT BE USED.
Paralleling is possible only with batteries purchased together and connected at the same time because they are connected together. over time the characteristics of the accumulator change causing a flow of current from the battery more new to the less new one.
It is not advisable to exceed the limit of batteries in parallel indicated in the specifications.

WHAT ELSE SHOULD I KNOW?

All LiFePo4 batteries deliver current up to the maximum allowed by its BMS.< br /> Therefore, in the case of use with an inverter, if the limit is 100A, approximately 1100/1200 Watts can be absorbed by the inverter.

LiFePo4 does not need battery chargers / maintenance technicians: if it is not used, it is always good practice to disconnect it with a battery switch and prevent it from being left completely discharged for long periods.
< br /> You must not use desulphators, devices designed only for lead batteries

It is not advisable to keep them always charged at 100% for long periods, unlike lead batteries, this conduct can damage them.

One of the characteristics of LiFePo4 is that it always delivers the same energy both at 100% and at 30% of its charge: therefore having them always fully charged does not always make sense, must upload and download.

Absolutely, do not use parallerators (Imanager, BDS180 etc) < strong>not dedicated to LiFePo4 batteries and absolutely not connected in parallel batteries of this type with others of a different nature.