LiFePO4 Battery

LiFePO4 Battery Pack

A lithium iron phosphate battery or LiFePO4 battery is a type of rechargeable battery. Due to the superior chemical and mechanical structure, LiFePO4 batteries are the safest type of lithium battery on the market today.

In addition to the application of the LiFePO4 battery pack itself. Spard has also developed LiFePO4 batteries to replace traditional sealed lead-acid batteries. Compared to SLA battery, LiFePO4 battery has much longer cycle life with lighter weight. Lead acid batteries may be a bargain at first, but they’ll end up costing you more in the long run. That’s because they need constant maintenance, and you must replace them more often. A LiFePO4 battery will last 2-4x longer, with zero upkeep needed.

Spard LiFePO4 Battery Pack

Typical Applications

Portable Power Station

With automotive grade LiFePO4 battery, Spard portable power station is safe and durable. BMS multiple protection, pure sine wave output, self-check and self-repair, with car emergency starting, wireless charging, bluetooth speaker.

Replace Lead Acid Battery

The series of LiFePO4 battery are designed as a direct replacement for your lead-acid batteries. You will get the longer service life, faster charging time, lighter weight and no need any maintainace with the same size. They are easy to use and to install.

Home Energy Storage

Spard offers best-in-class solutions that empower homeowners to design and manage their own energy storage system without ever leaving home.

UPS

Spard LiFePO4 batteries provide an outstanding combination of attributes including: high energy with long runtime and consistent discharge voltage, stable chemistry – safe and non-toxic, long life (10+ years) with no maintenance. They are ideal for use in UPS systems.

The Main Steps

Custom Your LiFePO4 Battery Packs

Select LiFePO4 Single cell

There are many types of LiFePO4 cells. Each type has its own special performances, and each application needs to choose the appropriate cell type first. No one type is suitable for all applications.

In addition to the performance selection of the battery cell, it is also necessary to select a battery cell of an appropriate size according to the maximum battery space that each application can provide.

Here we list 3 types of LiFePO4 cells commonly used, general model, high rate discharge model and high temperature model. If you have other performance or size requirements, feel free to contact Spard, we will provide you with more choices, and even customize the corresponding cells for you.

General LiFePO4 Cells

General LiFePO4 Model	Voltage (V)	Capacity (mAh)	Thickness (±0.3mm)	Width (±0.5mm)	Height (±2mm)	Weight (g)
YT14500F	3.2	600	-	14 (Diameter)	50±1	20±5
YT18650F	3.2	1500	-	18 (Diameter)	65±1	42±5
YT26650F	3.2	3400	-	26 (Diameter)	65±1	86±5
YT7542125F	3.2	2500	7.5	42	125	73±5
YT7075135F	3.2	5000	7.0	75	135	132±5
YT1075135F	3.2	7500	10.0	75	135	215±5

High Rate LiFePO4 Cells

High Rate Li-Po Model	Voltage (V)	Capacity (mAh)	Thickness (±0.3mm)	Width (±0.5mm)	Height (±2mm)	Weight (g)	Continuous Discharge Rate	Peak Discharge Rate
YT18650PF	3.2	1100	-	18	65	40±5	10C	15C
YT703496HHHHF	3.2	1700	7.0	34	96	49±5	20C	40C
YT904762HHF	3.2	1900	9.0	47	62	66±5	10C	20C
YT903496HHHHF	3.2	2100	9.0	34	96	61±5	20C	40C
YT804380PF	3.2	2100	8.0	43	80	55±5	40C	80C
YT954765HHHHF	3.2	2200	9.5	47	65	56±5	20C	40C
YT804380HHHHF	3.2	2200	8.0	43	80	59±5	20C	40C
YT655385PF	3.2	2400	6.5	53	85	63±5	40C	80C
YT114380PF	3.2	2500	11.0	43	80	65±5	40C	80C
YT9042125PF	3.2	3000	9.0	42	125	78±5	40C	80C
YT9042125PHF	3.2	3200	9.0	42	125	88±5	30C	60C
YT9042125HHF	3.2	3800	9.0	42	125	98±5	10C	20C

High Temperature LiFePO4 Cells

High Temp LiFePO4 Model	Voltage (V)	Capacity (mAh)	Thickness (±0.3mm)	Width (±0.5mm)	Height (±2mm)	Weight (g)	Charge Temp.	Discharge Temp.	Storage Temp.
YT703496FHT	3.2	1500	7.0	34	96	50±5	0 - 80℃	-10 - 80℃	-10 - 45℃
YT7042125FHT	3.2	2500	7.0	42	125	75±5	0 - 80℃	-10 - 80℃	-10 - 45℃

Battery Management System

Battery Management System (BMS) is mainly an integrated circuit board that protects lithium batteries because the material of the lithium battery itself determines that it cannot be overcharged, over-discharged, over-current, short-circuited and ultra-high temperature charging and discharging.

The three basic functions of BMS are short-circuit protection, overcharge protection and over-discharge protection. The optional functions could be balance function, communication function etc. Spard has hardware and software BMS for choice. The common BMS models are as below. Feel free to contact us if any other requirements.

Hardware BMS For LiFePO4

Hardware BMS Model	Over Charge Voltage	Over Discharge Voltage	Continuous Working Current	Peak Working Current	Size
PW-12170F-ZY-F2	3.65V	2.0V	25A	35-80A	93548mm

Software BMS for LiFePO4

Software BMS Model	Over Charge Voltage	Over Discharge Voltage	Continuous Working Current	Peak Working Current	Size	Communication Mode
PW-10S-35130-9355	3.65-4.3V	2.0-3.0V	20A	40-250A	130358mm	I2C
PW-10S-5545-9355	3.65-4.3V	2.0-3.0V	20A	40-250A	554515mm	I2C
PW-13S-CAN-10S	3.65-4.3V	2.0-3.0V	20A	40-250A	704318mm	CANBUS
PW-13S-CAN-13S	3.65-4.3V	2.0-3.0V	20A	40-250A	704318mm	CANBUS

Assemble Your Battery Packs

After selecting the correct single cell and suitable BMS, the assembly of the LiFePO4 battery pack also needs to consider some other details, such as charging wire & plug, discharging wire & plug, whether the battery pack needs color labels, whether the battery pack needs a housing, and whether the outer packaging is color carton, etc.

After the LiFePO4 battery pack is assembled, it needs to go through a sample test and a trial test before it can be officially finalized. Before placing a bulk order, we will assist you to obtain all necessary certificates as follows: