Model number:ISD300Physical Characteristics Electrical Characteristics Size: 172* 256*74 mmPower supply: DC 12V~36VWeight: 1.45kgsWorking current: 0.025A-0.7(12V)Working temperature: -20ºC~70ºCPower consumption of charging: Current 600mA, Power 7.2W Storage temperature: -35ºC~85ºCPower consumption of charging and communication: Current 700 mA, Power 8.4WBattery charging temperature:0ºC~45ºCPower consumption of sleeping mode: Current 25mA, Power 0.3WWorking humidity: 40ºC~95%Peak current:Current 2mA, Power 24WStorage humidity:40ºC~95%Power Protection Mode Inner main power supply: Input power is transmitted into inner main power before it changes the satellite phone. The charging status is monitored in real time, according to which power on/off is controlled, making sure the battery is charged in the optimal mode.Power saving mode: Once the battery is fully charged, the device will immediately transfer to sleeping mode.Short circuit protection:Short circuit production provided.Polarity protection:If the power polarity was incorrectly connected, the product would not start up. Our Service 1. Flexible cooperation mode,like OEM , ODM ... 2. Professional R&D team in marine communication/navigation equipment. 3. Perfect and powerful after-sales system. 4. Provide customized services for you. We have many quality dealer partners,you will be the next ? FAQ Q1. What is your terms of packing? A: Generally, we pack our goods in export standard carton . If you have legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters. Q2. What is your terms of payment? A: T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you pay the balance. Q3. What is your terms of delivery? A: EXW, FOB, CFR, CIF, DDU. Q4. How about your delivery time? A: Generally, it will take 3 working days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order. Q5. What is your sample policy? A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost. Q6. Do you test all your goods before delivery? A: Yes, we have 100% test before delivery Q7: How do you make our business long-term and good relationship? A:1. We keep good quality and competitive price to ensure our customers benefit ; 2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.