FAQ: Low temperature operation: What is the capacity of the LiFePO4 battery at different temperatures? (at 25°C, at 0°C, at -20°C ?)
1) Battery capacity
For 10*C to 40*C the battery nominal capacity is 100%. For temperatures bellow 10*C the internal resistance of the batter
FAQ: The discharge level of the 12V batteries with PCM ** Question: I keep discharging the 12V battery with PCM. But when the voltage gets to some 11V, the voltage suddenly drops to 0V. Is the battery defective? No, the battery is not defective. The PCM board in side this type of battery will disconnect the out
Simple Digital Voltmeter (range 0 - 30V)
The voltmeter allows to measure Voltage from 0 to 30V. For the measurement under 4V requires an external power supply (in range 5 V - 30 V). See the operation manual for examples. How to use:
1) The red wire connect to the (+) battery terminal
Freezing batteries - not with LiFePO4
The lead acid battery will freeze when fully discharged. See this: The electrolyte of a fully charged lead-acid battery with density of 1.28 g/cm3 changes the structure to solid at -68°C. With density of 1.25 g/cm3 (slightly discharged battery), t
TEST: The Winston LiFePO4 cell 160AH short-circuit at 1000Amp for 13 minutes
This test proves the safety of the LiFePO4 technology: no fire, no uncontrolled explosion into in fire, no sparking, no burning, no fire smoke (black).
The short circuit on an over-charged cell. This video shows the extrem
Custom battery pack 48V 10AH using WINA cells
A photo from a customer project using 16 cells WN10AH to make a 48V 10AH battery pack for a “super EVBIKE”. The management of the pack will be done by means of the SBM board.
The details about the small capacity LiFePO4 cells