Custom LiFePO4 Battery Pack

LITHIUM IRON
PHOSPHATE BATTERIES

Standard and custom LiFePO4 battery packs

OVERVIEW

Lithium Iron Phosphate batteries first appeared in the early 2000’s and are increasingly used in robotics and energy storage. Lithium Iron Phosphate (LiFePO4) batteries have a nominal voltage of 3.2V and are an excellent solution for applications requiring a lightweight, high capacity battery with a long lifespan and stability at high temperatures.

Lithium Iron Phosphate is based on Lithium-Ion chemistry. One of the major advantages of LiFePO4 over other Lithium-Ion chemistries is its thermal and chemical stability, which greatly improves the safety of the battery. 

LITHIUM IRON PHOSPHATE CELLS

At Enix Power Solutions, we have been building custom battery packs over the last 10 years using cells from leading Lithium Iron Phosphate battery manufacturers such as K2 Energy and A123. 

We also offer our own range of reliable LiFePO4 cells under the NX brand:

Part NumberDescriptionNominal VoltageCapacityMax. Continuous Discharge CurrentPulse Discharge CurrentDatasheet
ACL9073IFR18650 3.2V18000 mAh5.4A10A 5s

PDF

ACL9074IFR266503.2V3800 mAh11.4A20A 5s

PDF

ACL9076IFR26650 HD3.2V2800 mAh42A84A 3s

PDF

We also assemble battery packs with K2 Energy 26650 LiFePo4 cells held in stock 

STANDARD LIFEPO4 BATTERY PACKS

We have also designed a full range of standard UN38.3 certified (safe for transport by  air, sea, rail and road) Lithium Iron Phosphate battery packs, held in stock to offer a quick and cost-effective service. Advantages of our standard LiFePO4 battery packs: 

UN38.3 CERTIFIED

SOFT PACKS RANGE

MGL9058
MGL9059
MGL9060

Part Number

Voltage

Nominal Capacity

Config.

Max. Charge Current

Max. Charge Voltage

MGL90583.2V1.5Ah1S1P1.5A3.65V
MGL90596.4V1.5Ah2S1P1.5A7.3V
MGL90606.4V3Ah2S2P3A7.3V

UN38.3 CERTIFIED

HARD CASE RANGE

AML9142
AML9131
AML9133
AML9134
AML9135
AML9156
AML9141
AML9138
AML9154
Part NumberVoltageCapacityCont. Discharge
Current
Max. Discharge
Current (<3 Sec)
TerminalsDimensionsWeight
AML91426V4.5Ah5A8AF4.870x101x47mm0.35kg
AML913112V7Ah15A20AF6.35151x65x99mm1.1kg
AML913312V12Ah24A30AF6.35151x98x101mm1.7kg
AML913412V18Ah36A50AM6-M181x77x167mm2.7kg
AML913512V33Ah50A60AM6-F195x130x178mm4.8kg
AML915612V40Ah70A80AM6-F195x175x165mm5.8kg
AML914112V65Ah80A100AM8-F262x167x212mm9.2kg
AML913812V100Ah100A120AM6-F342x173x212mm13.6kg
AML915412V150Ah100A140AM6-F483x238x170mm18.4kg

Our range of hard case UN38.3 Lithium Iron Phosphate batteries are a direct replacement for standard Lead Acid batteries. 

Advantages of LiFePO4 batteries:

LITHIUM IRON PHOSPHATE APPLICATIONS

Road Signs

Solar

Medical

Back-up Power

Lighting

Icon_Defense Military

Defence

LITHIUM IRON PHOSPHATE VS LITHIUM-ION

These two chemistries share many advantages and disadvantages however there are significant differences. Lithium Iron Phosphate offers a higher number of charge/discharge cycles, up 1,500 cycles at 100% DOD (depth of discharge) and 2,000 cycles at over 80% capacity.

One of the major advantages of Lithium Iron Phosphate over Lithium-Ion chemistries is its thermal and chemical stability, which greatly improves battery safety. The LiFePO4 cathode is intrinsically safer than the LiCoO2 or the manganese cathode. The Fe-PO bond is stronger than the Co-O bond, so that if misused (short circuit, overheating, etc), the oxygen atoms are much more difficult to remove. As a result, Lithium Iron Phosphate cells are much more difficult to inflame when mishandled (especially during charging). It is commonly accepted that LiFePO4 cells do not disintegrate at high temperatures. However, despite this, there is still a risk of thermal runaway in cases of continuous overcharging or incorrect charging procedures.

LITHIUM IRON PHOSPHATE VS LEAD ACID

LiFePO4 offers a much longer cycle life, approximately four times longer than Lead Acid (1,500 cycles for LiFePO4 vs. 400 cycles for Lead Acid), and a wider range of operating temperatures (-20°C – +60°C). Lithium Iron Phosphate batteries offer a higher energy density and are twice as light as Lead Acid.

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