mastervolt.us BATTERY MANAGEMENT 91 Charge Mate A secondary battery is becoming increasingly common. As a second battery can prevent the main battery from depleting and being unable to start, this seems like a safe and reliable solution. The second battery, however, also has to be charged regularly. The Charge Mate series connects both batteries during charging and keeps them isolated when discharging. The Charge Mate 1202 and 2502 are especially practical for small systems, the Charge Mate Pro provides additional functionality by limiting the charge current to the second battery to 40A or 90A. The main battery is therefore charged with priority. The return current is automatically blocked and power dips of the onboard network are reduced. An emergency start function is possible by connecting an optional bypass switch. Charge Mate 1202 Charge Mate 2502 Charge Mate Pro 40 Charge Mate Pro 90 Part # 83301202 83302502 83304002 83309002 General Specifications Battery voltage 12/24V 12/24V automatic 12/24V detection automatic 12/24V detection Max. current Bi-directional, 120A Bi-directional, 500A Directional, Current limiting to 40A Directional, Current limiting to 90A; > 77°F derating power Number of modes n.a. on, off, auto, start assist on, off, auto, 150A start assist on, off, auto, 150A start assist Dimensions, hxwxd 3" x 1.8" x 1.8" 76 x 46 x 46 mm 3.5" x 3.1" x 3.3" 90 x 80 x 85 mm 6.2" x 5.5" x 3.2" 157 x 140 x 80 mm 6.2" x 5.5" x 3.2" 157 x 140 x 80 mm Weight 0.3 lb / 0.125 kg 1.4 lb / 0.65 kg 1.94 lb / 0.88 kg 1.94 lb / 0.88 kg Technical Specifications No-load power consumption switch open: < 1 mA at 12/24V DC switch open: < 1 mA at 12/24V DC switch open: < 1 mA at 12/24V DC switch open: < 1 mA at 12/24V DC Inrush current (250ms) 2000A 2000A n.a. n.a. Switch on voltage 13-15V (12V) 26-30V (24V) 13-15V (12V) 26-30V (24V) 13.5V (12V) 27V (24V) 13.5V (12V) 27V (24V) Switch on delay 5 sec. 30 sec. 5 sec. 5 sec. Switch off voltage < 12.75V (12V) < 25.5V (24V) < 12.25... > 15V (12V) < 25.5...> 30V (24V) 12.75V (12V) 24.5V (24V) 12.75V (12V) 24.5V (24V) Switch off delay no 3 minutes 2.5 sec. 2.5 sec. Relay electro-mechanical electro-mechanical electronically (MOSFETs) electronically (MOSFETs) Ambient temperature -40°F to 149°F (-40°C to 65°C) -40°F to 140°F (-40°C to 60°C) -40°F to 140°F (-40°C to 60°C) -40°F to 140°F (-40°C to 60°C) Protection degree IP21 IP21 IP65 IP65
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