CPU and intelligent PWM IC control, full automatic transition of cc,cv and float/cut-off ,meet the demands for different curve.

Model selection reference:

UY-2000A-73/20RO 73V/20A 20series LiFePo4 battery
UY-2000A-87.6/20RO 87.6V/20A 24series LiFePo4 battery
UY-2000A-58.8/30R0 58.8V/15A 14S Li-ion/polymer battery
UY-2000A-58.4/30RO 58.4V/15A 16Sseries LiFePo4 battery
UY-2000A-43.8V/40R0 43.8V40A 12series LiFePo4 battery
UY-2000A-42V/40R0 42V40A 10 series Li-ion/polymer battery

1. Electronic Characteristics

Table 3. Electronic characteristics

No. Item Unit Min. Typ. Max. Remark
01 Input voltage Vac 200 220 264
02 Input power W 2061
03 Constant charge voltage Vdc 87.3 87.6 87.9-
04 Float voltage(for lead acid battery only) Vdc
05 Constant charge current A 19 20 21
06 Charge complete current mA 900 1000 1100
07 Ripple voltage mV 500
08 Efficiency % 85 Full load

2. Protect Characteristics

2.1 Output Over Voltage Protection

When the charger output voltage exceeds the maximum charging voltage, the charger enters the standby state protection. Troubleshooting can be automatically restored to normal working condition.

2.2 Output Over Current Protection

When the charger output current exceeds the maximum charging current, the charger enters the over current protection status. Troubleshooting automatically restored to normal working condition.

2.3 Short Circuit Protection

When the charger has short circuit at output, the charger enters short-circuit protection status. Troubleshooting automatically return to normal working condition.

2.4 Reverse Polarity Protection

If charger DC output terminal connect to battery reverse, fuse on the output side would be fuse, output circuit would be cut off. Replace the fuse, and then connect to battery correctly, charger would resume working.

3. Environmental

3.1 Working Conditions

Ambient temperature: -5℃ ~ +40℃;

RH: 5% ~ 95%;

Max. altitude: 10000  meter;

Cooling: BAL series chargers use of forced air cooling system. Under dustless and ventilated conditions, the full load temperature rise not exceeding 40℃.

3.2 Storage Conditions

Ambient temperature: -40℃ ~ +70℃;

RH: 0% ~ 95%;

Max. altitude: 20000 meter.

4. Reliability

Table 4. Reliability

No. Item Description Remark
01 MTBF average operating life ≥ 30000h 25℃
02 Anti-vibration 5mm/50Hz/600s vibration test PASS

5. Safety

5.1 Insulation Characteristics

Table 5. Insulation characteristics

Insulation resistant Input to output DC500V 50MΩmin (25℃, Humidity≤70%)
Input to case DC500V 50MΩmin (25℃, Humidity≤70%)
Output to case DC500V 50MΩmin (25℃, Humidity≤70%)
Hi-Pot Input to output 1500Vac 50Hz 1minute ≤10mA
Input to case 1500Vac 50Hz 1minute ≤10mA
Output to case 500Vac 50Hz 1minute ≤10mA

5.2 Leakage Current

With max input and full load, the leakage current < 0.75m A, meet to Class II.


5.3 Standard specifies

EN 55022:2006+A1:2007

EN 61000-3-2:2006+A1:2009+A2::2009

EN 61000-3-3:2008

EN 55024:1998+A1:2001+A2:2003

5.4 Electromagnetic Interference

Conducted interference: EN55011.13.14-1.15.22.FCC part 15&18.VCCI;

Radiated interference: EN55011.13.22.FCCpart 15&18.VCCI/EN55013.EN55014-1.

5.5 Electromagnetic Immunity

Anti-static: IEC/EN61000-4-2 8KV;

Pulse group: IEC/EN61000-4-4 2KV;

Lightning surge: IEC/EN61000-4-5 1.5KV;

Harmonic: IEC/EN61000-3-2 <25%.