Blog - LiFePO4

Winston cells passed the China Army military safety tests

The photo shows the punch-through simulating a shooting from 45 mm calibre anti-tank gun.

Fully charged cells are punched through simulating the shoot-through from a military weapon. The purpose of the test is to see the safety and stability of the lithium cells.

As visible from the photo, the cells re

What is the Peukert’s Exponent for LiFePO4 cells?

The is used for the lead-acid batteries. Simply said this exponent is the ratio between the charging and discharging of a battery. It means how much energy you need to charge compared to the energy you get when discharging.

For the LiFePO4 cells, the efficiency of the charge and dis

How to calculate the cost of stored energy in a LiFePO4...

Lead Acid or LiFePO4? This is the price per kWh stored and cycle life comparison. The two following graphs will show you the comparison between the Lead Acid and LiFePO4 batteries. The first one compares the average number of cycles (cycle life) according to the battery type and a depth of discharge. The se

Sailing Yacht with a 12V/200AH battery bank

A reference project for a battery bank on a sailing yacht using the4x WB-LFP200AH cellsfor the board battery and theBMS123 Smart. The battery pack is charged from the on-board AC/DC charger (35 Amp) and the generator (up to 80 Amp).

Low priced cells on the market

Low priced cells on the market

Question: We have received a quote for a battery pack from a Chinese supplier. The quote is considerably lower than the price of the LFP cells on the market in Europe. Why is this so?

Answer:Yes, the pricing that is available from some suppliers in China i

3.2V LFP cell initial charging

Question: How should new cells 3.2V 40AH,60AH, 90AH, 100 AH, etc. be formed before first usage?

Answer:The new 3.2V LFPcells delivered from the warehouse are partially charged. Howeverbefore the first use, it is essentialto charge each cell to full capacity. The initial charging should

12V LP battery balancing and charging

Question: Can I charge the 12V LFP battery using a conventional auto-moto charger 12V?

Answer: With most of “cheap” car battery chargers you**cannot**charge the 12V LFP battery. Cheap chargers often end charging at 14V. As a result the LFP batteries are not charg

You must charge the LiFePO4 before the first use!

You must charge before the first use!

We remind all users of the LFP cells and LP batteries that the cells and batteriesMUST be chargedto full voltage levelBEFOREassembling into a pack and before starting to be used.

For the 3.2V cells, the full charge voltage level i

Using BMS to analyze the cell performance

Why is the BMS needed for a LFP battery pack consisting of many cells?

Answer: The Battery Management System (BMS) allows you to monitor the battery pack operation. Since the battery consists of a serial string of many cells, you need to monitor each cell to prevent from deep discharge or ove

Charging individual cells using the regulated (laboratory)...

Charging individual cells using the regulated (laboratory) power supply

Many of the laboratory power supplies allow charging of the individual cells. Using such a regulated power supply is a suitable method for performing the initial charging or for the balancing of a single cell in a battery