I think they just mean the 200Ah battery is cheap compared to 2 x 100Ah from the same company. BatteryStuff Tech Ideal charging amperage for both the charger and the battery is about 10% of the battery’s Amp/Hr rating. Lithium Batteries for 4WD’s & Caravans – Revolution Power – Why? I find a label on the battery which is notice that the minimum charging current is 10% of the battery capacity. And How long to charge a deep cycle battery? current comes from my solar panels in cloudy days is less than 10A, It could take u abt 10 to 12hrs to charge fully. Which makes sense since 2 x 100ah would have 2 x BMS and 2 x cases. Obviously, it is the advance characteristics that separate it from other.Even its manufacturing materials are standard and ahead of others in quality. Subsequently, question is, how long will a 200ah battery last? It’s different from the car battery and marine battery. Here We Compare The Best 200Ah Lithium Batteries: – 1. With a larger battery such as yours we would recommend a marine 12v 10 amp charger such as the NOCO Genius 12v 10 Amp Marine On-Board Battery Charger, or a USA made Dual Pro 12v 10 Amp Sportsman Series On-Board Charger.Our preference would be the USA made charger … It depends on the charging current of the inverter, most Indian inverter do 13amps for their charging current, if u deplete the ba3, lets say u use 70% worth of juice. I looked at the price difference 1 x 200ah = 1300 & 10% discount = $1170 2 x 100ah = 2 x 700 & 5% discount = $1330 If you have 400 watts of solar, you will charge twice as fast. Charging a LiFePO4 battery basically means applying an external voltage to drive current from the anode to the cathode of the battery. The charger acts like a pump – pumping current upstream, opposite the normal direction of current flow when the battery discharges. A 200Ah lithium battery gives you everything you need to run high current appliances and gadgets on a longer road trip, with all the benefits of weight, size and efficiency.. If you have any questions regarding this product, please call us at 1 (909) 287-7111 or email support@renogy.com . Voltage, current, consumed power & battery capacity are all accurately measured & displayed on the LCD screen in real- time. If you correctly stated that your charger is 10Ah, then possibly it is optimised to charge a 10Ah capacity battery, in which case it would produce a charging current of 500mA. Max. So it is pretty much crucial to know how to charge a deep cycle battery properly. It is highly recommended to use a battery balancer to extend the battery service life when multiple batteries are connected in series and/or in parallel. 10% of 200Ah is 20A. The Best 12V 200ah Battery Options to Choose From. A deep cycle battery is, in particular, a hybrid battery. 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