Description

OPUS BT – C3100 Digital Intelligent 4 Slots LCD Battery Charger For Li-ion NiCd NiMH AA AAA 10440 18650 Rechargeable Batteries

This charger is a analyzing LiIon and NiMH charger, this means the charger can both charge and discharge while measuring. The total number of function is large and this means the technical section in this review is very large.

When the charger is turned on, it displays test where all the text can be seen.

Description:

Item type:Battery Charger

Voltage update rate is the 30s instead of 60s.

Charging voltage is regulated to 4.7V instead of 5.0V, thus loading on power adapter when batteries are flat is less. 5.0V charging voltage has a problem in regulating the correct current level due to this overloading current on the power adapter, which leads to Panasonic brand Li-ion batteries showed wrong charging capacity value ( + 25 percent ). With 4.7V charging voltage, the load on power adapter is greatly reduced and thus can make all types of batteries charged properly.

4.35V charging time can be very long because charging current is regulated in entering the CV stage at 4.12V, which is same as 4.2V type. Now, 4.35V charging algorithm is changed to 4.27V.

Better safety feature: PCB temperature was used to in controlling fan on / off only with 2.0V, now this function is enhanced so that temperature is monitored for entering thermal shutdown mode when an excessive high temperature is reached. It is especially helpful when the fan is not running and which can lead to plastic meltdown happening.

New fan cover provides better protection for the cooling fan.

Charging current range: 200mA, 300mA, 500mA, 700mA, 1000mA, 1500mA, 2000mA

Discharge current range:200mA, 300mA, 500mA, 700mA, 1000mA ( Li-ion batteries only )

Max. charging capacity: 20000mAh

Voltage deviation: ＜ 0.03V @ 4.2V

Current deviation: ＜ 5pct

Brand: Opus

Type: Charger

Model: BT-C3100 V2.2

Plug: EU adapter, UK plug, US adapter

Charging Cell Type: Lithium-Ion, Ni-MH, NiCd

Compatible: 10440,14500,16340,18650，18500,26650,17500。

Charging Cell Qty: 4

Input Voltage: AC 100~240V 50/60HZ

Output Voltage: DC 12V, 3.0A

LCD Screen: Yes

Circuit Detection: Yes

Protected Circuit: Yes

Short Circuit Protection: Yes

Over Voltage Protection: Yes

Over Charging Protection: Yes

Over-Discharging Protection: Yes

Package Include:

1X Opus BT – C3100 V2.2 Intelligent Battery Charger

1X Power Adapter

1X English User Manual

Additional information

Package	Yes
Use	Standard Battery
Model Number	OPUS 3100
Display screen	Yes
Intelligent Charge	Yes
Quick charge	Yes
Type	Electric
Brand Name	Opus
Origin	Mainland China
Certification	CE