37.8V 1A Li-ion Battery Charger for 9S 33.3V Battery Packs
37.8V 1A charger for 9S 33.3V Li-ion batteries
Durable and efficient charger for 9S 33.3V lithium-ion battery packs, ideal for light-to-medium power applications including e-bikes, scooters, LED lighting systems, RC devices, and portable electronics.
Features
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Designed for 9S 33.3V Li-ion battery packs
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Intelligent multi-stage charging: Pre-charge, Constant Current (CC), Constant Voltage (CV), Auto Cut-off
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Dual-color LED indicators for easy monitoring
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Built-in protections: Over-voltage (OVP), Over-current (OCP), Short-circuit (SCP), Reverse polarity
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Compact and lightweight design with excellent heat dissipation
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CE, UL, FCC, RoHS certified
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OEM/ODM customization available
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3-year warranty for guaranteed quality
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Adapt for e-bikes, scooters, LED lighting systems, RC vehicles, drones, portable electronics, and other battery-powered devices
Description
37.8V 1A Li-ion Battery Charger Specification
Brand: Fangxin®
Model: FX3781000
AC Input: 100~240V
DC Output: 37.8V 1A
Charge Process: Pre-charge, CC, CV and Automatically Cut-off
Charger Indicator: With Double color LED for power capacity show
Output Protections: OVP, OCP, Shorted, Reversed
Safety Approval: CE, UL, TUV, FCC, PSE, CCC
Size: 113*44*30MM
Net Weight: 300g
Adaptor for: 9S 33.3V Li-ion Battery, Lipo battery, Lithium ion battery
Customized Charger: Acceptable
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FX3781000 37.8V 1A Li-ion Battery Charger for 9S 33.3V Battery Packs |
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| Item | Specification | Remark |
| 1.Input | ||
| Rating input voltage | 100~240 Vac, 50/60 Hz | |
| Input voltage range | 90~264 Vac | |
| Rating input current | 1.0 A/RMS | Input:100V Output: Full load |
| Max input power | 44W | Input:100V Output: Full load |
| 2.Output | ||
| No load output voltage | DC 38V | |
| Output voltage range | DC 33.3V ~ 37.8V | |
| Charging current | 1A ±10% | |
| Charging voltage | DC 37.8V ±0.2 V | |
| Pre-charge | 0.1A ± 0.1A | Voltage≤27V |
| Charge-end current | ≤0.2A±10% | |
| Suit with battery type | 9S Li-ion Battery | |
| Timer | – | |
| Max output power | 37.8W | |
| Ripple voltage | ≤168mV | Full load |
| Power LED | Red | Power on |
| Charging LED | All off | No battery |
| All on (or Green on) | Finished | |
| All flashing | Error | |
| Flashing one by one | Charging | |
| Shorted | Yes | |
| Reversed | Yes | |
| Efficiency | ≥85% | Full load @220V |
| 3.Environment | ||
| Operate temperature | -10 ~ +40℃ | |
| Operate humidity | < +90% | Relative humidity |
| Storage temperature | -40 ~ +70℃ | |
| Storage humidity | 0 ~ +95% | Relative humidity |
| Cooling | Natural | |
| Vibration resistance | 5MM / 50HZ/600S | Non-operating condition |
| Impact resistance | 1 meter drop test 3 times | Non-operating condition |
| 4.Mechanical | ||
| Net Weight | 300g | |
| Size | 113*44*30MM | Casing only |
| Connector | Refer to order | |
| 5.Safety | ||
| Max. temperature rise | < 40℃ on casing | |
| Safety approval | CE/TUV/FCC/PSE/CCC | |
| MTBF | 30000 H | |
| ESD | 8.0 KV | |
| Hi-Pot Insulation | i/p to o/p: 3000V (1 min) | |
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