| Model
Number |
Battery type |
Li-ion/Polymer |
LiFePO4 |
|
WMB-4020LF |
Cell number |
4 cells |
4 cells |
| Voltage |
Charge voltage
|
16.8V |
14.4V |
|
Current |
Max continuous discharge
current |
20A |
20A |
| Max continuous charge
current |
20A |
20A |
| Current consumption
|
less than 20uA |
less than 20uA |
| Over
charge protection |
Over charge detection
voltage |
4.3v |
3.9v |
| Over charge detection
delay time |
1.2s |
1.2s |
|
Over charge release voltage |
4.08v around |
3.8v around |
| Over
discharge protection |
Over discharge detection
voltage |
2.5v |
2.3v |
| Over discharge detection
delay time |
50~150mS |
50~150mS |
| Over discharge release
voltage |
2.9v |
2.7v |
| Over
current protection |
Over current detection
voltage |
0.1v |
0.1v |
| Over current detection |
60A |
60A |
|
Detection delay time |
5~15mS |
5~15mS |
|
Release
condition |
Cut load,automatically recover
|
Cut load,automatically recover
|
| Short
circuit protection |
Detection condition |
Exterior
short circuit |
Exterior
short circuit |
| Detection delay time |
200~500uS |
200~500uS |
| Release condition |
Cut
load,automatically recover |
Cut
load,automatically recover |
|
Balance |
Balance voltage for
single cell |
No |
No |
|
Balance
current for single cell |
No |
No |
|
Resistance |
Inner
resistance |
≤50mΩ
|
≤50mΩ |
|
Temperature |
Operate
temperature range |
-40 ~ +85°C
|
-40 ~ +85°C
|
|
Storage
temperature range |
-40 ~ +85°C
|
-40 ~ +85°C
|
|
Size(L*W*H) |
98mm*24mm*5mm
|
(ID13632959016)
