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Pictured in blue in CAD [with wheel travel] is:

1200W on-board waterproof battery charger 48v/20A, KC CE Ro1200W on-board waterproof charger

– Main advantage of this charger is compact size
– 130mm x 90mm x 230mm
– Pre-charging
– automatic shut off
– over charging protection

https://www.alibaba.com/product-detail/1200W-on-board-waterproof-24V-48V_62252160597.html?spm=a2700.details.pronpeci14.11.652e4b9afSCIvk

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Other options are:

48v 20A 1500W Waterproof Intelligent Battery Charger

• 281mm x 143.5mm x 84mm
• Power factor:≥0.98
• Maximum efficiency:93.0%(full load)
• Noise:≤45dB
• Grade of waterproof:IP67
• Weight:3kg
• Operating temperature:-30℃-55℃
• Storage temperature:-40℃-95℃
• Available function:CAN bus control is optional & 12V output & three led indication & vehicle-lock under charging

Protection function

• Output over current protection
• Output over voltage protection
• Output short-circuit protection
• Output no-load protection
• Output reversal connect protection
• Input over voltage protection
• Input under voltage protection
• Over temperature Protection of Charger
• CAN Communication Fault Protection
• Auto power off while full charge

https://www.alibaba.com/product-detail/48v-20A-1500W-Waterproof-Electric-Car_62094893600.html?spm=a2700.7724838.2017115.100.3947743ezlqQoy

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Charger portable waterproof w/supporting charging gun
– LX-LongRun-J1-4830
– 48v
– 30A/35A
– 280mm x 152mm x 115mm
– IEC 62196 Type 2 charging socket and gun

https://www.alibaba.com/product-detail/High-quality-charger-2kw-12v-24v_62297643055.html?spm=a2700.7803241.0.0.79513e5fAVYOJh

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