- Brand Name: WEMS
- Compatible Brand/Model: None
- Compatible: Game Console
10pcs Ultra-small lithium battery constant current charging module for Arduino UNO
modul parameter:
1. Modul Name: 3.7 v lithium battery charging module board (for single or multi 3.7 v lithium battery charging in parallel)
2. the module volume, length of 15mm * 8mm * width height 2mm (up electronic components, pcb thickness of 1mm, the minimum number of taobao
3. the modular nature of: + constant + constant trickle / automatic wandlungstyp lademodul
4. input voltage: vcc – eingangspegel positive level gnd negative input, input voltage of 4.5 v to 6.5 v
5. output voltage: b + output to connect the battery positive electrode, b battery, last exit connection, wire connection
6. output current: konstantstromladung standard is 480 – 500ma (can be changed in order to improve the resistance to the maximum 800ma)
7. working temperature: – 40% industrial to + 85 degrees)
features:
this module is a single 3.7 v lithium battery constant current / constant voltage linear lademodul via the usb connector for charging the battery, lithium battery charger can also be used independently.
when loaded, if the battery is full automatically terminates the charging process in the standby mode, the standby current is less than 25ua when the input power is removed, the module automatically in a low power mode drawing less than 20ua of current from the battery.
this module automatically charging current during high performance and high temperature environment in order to limit the temperature of the load to ensure safe loading, with insulation.
the module has a voltage detection, automatic ladezyklus function led indicator lights when the charging state.
load abschlussspannung 4.2 v 1% accuracy, automatic erhaltungsladung if the battery is lower than 2.8 v, soft start work, programmable current 800ma maximum.
invite detailed process.
if the battery has been connected to the normal and the input power supply (4.5 v to 6.5 v) when the sample voltage is lower than 4.05 v battery charging module automatically starts and enters the constant current 500ma load mode if the battery voltage reaches the load to 4.2 v constant voltage mode automatically when the current begins to gradually decrease in erhaltungsladung mode (this mode the ark ark status is off) when the charging current drops to 10% (approximately 45ma or so) or less, and erhaltungsladung until the end of the load to complete in the standby mode and continually monitors the battery voltage, the battery voltage is lower than once monitored 4.05 v w each of the ark to repeat the process.
if the first power on when the battery voltage of 2.8 v), the module will be erhaltungsladung module is more than 10% of the battery constant current for charging the battery, the battery slowly rise, on the safety of the load zone of 2.8 v switch 500ma konstantstromladung.
even if you first power, when it is detected, when the battery voltage of 4.2 v and 2.8 v module directly over the start of constant current charging.
caution
1. the only teststrom amperemeter in series with the eingangsanschluß of the load plate.
2. the current is preferably 0.37c battery capacity, the capacity is 0.37 times, capacity 1000 mah battery charging current 400 that is enough. excessive ladegeschwindigkeit effect bad, rushed above the battery voltage to more!
3. charging small connecting cable can not be too long. large connection resistance. too thin, then rushed on the battery voltage to more.
4. close the battery with the best good contact and the battery voltage or punch the more completed.
5. if the input voltage is high, such as 5.5 or 6 v, it can be the current in the current settings, this is normal. because the high voltage chip fever will automatically reduce the current, not to burn the chip. chip in the work about 60 degrees fever is normal. after the charging current.
