Standard and custom Li-ion batteries


Lithium-ion batteries appeared in the early 1990’s and were first marketed by Sony. These batteries now have a leading position on the rechargeable battery market. Their main advantage is their high energy density (two to five times higher than Nickel Metal Hydride, for instance). 

Lithium-ion or Li-Ion batteries are based on the reversible exchange of lithium-ions between the positive electrode, usually made from cobalt or manganese dioxide, and the negative electrode made from graphite.

Lithium-ion batteries


As a leading custom Lithium-ion-battery pack assembler, we hold a very wide range of industrial cells in stock to offer the most comprehensive range of battery packs on the market.

As the choice of cell is a key component of battery performance based on the energy requirement, the budget and the application, we stock the majority of lithium-ion cells available on the market. Panasonic, LG, Samsung, Sony Murata, Molicel and Saft are brands we always keep in stock. We also keep most sizes available for current supply but also for new projects like popular 18650 cells but also 18500, 14500, 21700, D and several prismatic cells such as the very popular 103450 cell.


We have developed a UN38.3 and IEC 62133v2 approved range of standard battery packs with BAK cells that covers a wide range of applications, allowing our customers to access a comprehensive offer without high MOQs and certification costs.

View our standard range Lithium-Ion packs below 

Part NumberNominal VoltageNominal CapacityConfig.Max Charge CurrentMax Charge VoltageMax Discharge CurrentWiresNTCDimensions
MGL008423.6V3.35Ah1S1P3A4.2V3.4A24 AWGNo18.6 x 68.5mm
MGL008433.6V3.35Ah1S1P3A4.2V3.4A24 AWGYes 10K18.6 x 68.5mm
MGL008443.6V3.35Ah1S1P3A4.2V3.4A22 AWGNo18.6 x 68.5mm
MGL008463.6V3.35Ah1S1P3A4.2V3.4A22 AWGYes 10K18.6 x 68.5mm
MGL008473.6V6.7Ah1S2P3A4.2V3.4A24 AWGNo37.5 x 19 x 70mm
MGL008483.6V6.7Ah1S2P3A4.2V3.4A24 AWGYes 10K37.5 x 19 x 70mm
MGL008493.6V6.7Ah1S2P3A4.2V3.4A22 AWGNo37.5 x 19 x 70mm
MG008503.6V6.7Ah1S2P3A4.2V3.4A22 AWGYes 10K37.5 x 19 x 70mm
MGL008513.6V10.05Ah1S3P3A4.2V3.4A24 AWGNo56 x 19 x 70mm
MGL008523.6V10.05Ah1S3P3A4.2V3.4A24 AWGYes 10K56 x 19 x 70mm
MGL008533.6V10.05Ah1S3P3A4.2V3.4A22 AWGNo56 x 19 x 70mm
MGL008543.6V10.05Ah1S3P3A4.2V3.4A22 AWGYes 10K56 x 19 x 70mm
MGL008557.2V3.35Ah2S1P3A8.4V3.4A24 AWGNo38 x 19 x 70mm
MGL008567.2V3.35Ah2S1P3A8.4V3.4A24 AWGYes 10K38 x 19 x 70mm
MGL008577.2V3.35Ah2S1P3A8.4V3.4A22 AWGNo38 x 19 x 70mm
MGL008587.2V3.35Ah2S1P3A8.4V3.4A22 AWGYes 10K38 x 19 x 70mm
MGL008597.2V6.7Ah2S2P3A8.4V3.4A24 AWGNo38 x 37.5 x 70mm
MGL008607.2V6.7Ah2S2P3A8.4V3.4A24 AWGYes 10K38 x 37.5 x 70mm
MGL008617.2V6.7Ah2S2P3A8.4V3.4A22 AWGNo38 x 37.5 x 70mm
MGL008627.2V6.7Ah2S2P3A8.4V3.4A22 AWGYes 10K38 x 37.5 x 70mm
MGL0086310.8V3.35Ah3S1P3A12.6V3.4A24 AWGNo56 x 19 x 70mm
MGL0086410.8V3.35Ah3S1P3A12.6V3.4A24 AWGYes 10K56 x 19 x 70mm
MGL0086510.8V3.35Ah3S1P3A12.6V3.4A22 AWGNo56 x 19 x 70mm
MGL0086610.8V3.35Ah3S1P3A12.6V3.4A22 AWGYes 10K56 x 19 x 70mm
MGL0086714.4V3.35Ah4S1P3A16.8V3.4A24 AWGNo38 x 38 x 70mm
MGL0086814.4V3.35Ah4S1P3A16.8V3.4A24 AWGYes 10K38 x 38 x 70mm
MGL0086914.4V3.35Ah4S1P3A16.8V3.4A22 AWGNo38 x 38 x 70mm
MGL0087014.4V3.35Ah4S1P3A16.8V3.4A22 AWGYes 10K38 x 38 x 70mm
MGL0088214.4V6.7Ah4S2P3A16.8V3.4A24 AWGNo74 x 37 x 66mm
MGL0088314.4V6.7Ah4S2P3A16.8V3.4A24 AWGYes 10K74 x 37 x 66mm
MGL0088414.4V6.7Ah4S2P3A16.8V3.4A22 AWGNo74 x 37 x 66mm
MGL0088514.46.7Ah4S2P3A16.8V3.4A22 AWGYes 10K74 x 37 x 66mm

All dimensions are subject to a tolerance of +/- 1mm.

Advantages of our Lithium-Ion battery packs:



Icon_Embedded Electronic PCB

Embedded Electronics


Power Tools




Although cobalt has been used for a longer period of time, manganese is by nature less dangerous even when the cells are misused so the protection circuits can be simplified. In addition to improved safety, the cost of manganese as a raw material is lower than the cost of cobalt. On the other hand, it has a lower energy density, its capacity drops at temperatures higher than 40°C and it ages faster than cobalt. Take a look at the advantages and disadvantages of the two chemical compositions below.

Energy Density (Wh/Kg)




When there is an overload, the cobalt electrode supplies excess lithium that can be transformed into metallic lithium, which leads to a potential safety risk if it is not protected by a protection circuit.

During an overload, the manganese electrode has a lower lithium content which means that only the element heats up. The protection circuits can be simplified for the small 1 and 2 cell packs.


Wide range of temperatures. Best suited to work at high temperatures.

Loses capacity above 40°C. Not as resistant at higher temperatures.


Short term storage is possible. The impedance increases with time. The new versions can be stored for longer.

Short term storage possibility is slightly lower than with cobalt.

The impedance does not change much during the life cycle of the element. The shelf life is difficult to predict because of continuous improvements to the chemistry.

Life cycle

300 cycles, capacity of 50% at the 500th cycle

Can be shorter than cobalt.


The cost of the raw materials is high and a protection circuit increases the cost.

Raw material is 30% cheaper than the cobalt. A simplified protection circuit is a real advantage in terms of cost.