How large of an RV battery should you put in to make it work?
Two of the most complex RV systems are the utility systems. In this post, we'll talk about how to choose an RV battery.
Two main types of batteries in the RV market: lead-acid batteries and lithium batteries：
The main advantages of lead-acid batteries are short-term use and low price; the disadvantages of lead-acid batteries are small storage capacity, high weight, no deep discharge, and short service life.
The remarkable advantages of lithium battery: are large storage capacity, light structure, support for deep discharge, smarter and safer; disadvantages: in the short time, the price is higher than lead-acid battery, but in the long run, the comprehensive price ratio of lithium battery is higher.
The RV power charging system:
Include external mains power, generator, and solar power. The advantages of external mains power are that there is no noise and no restriction on the electricity. But there is an obvious disadvantage that it is difficult to find a place to connect the electricity when you are out of the house. Generators have the advantage of unlimited power at any time and enough oil; their disadvantage is that they are noisy. The advantage of solar power is that it is noiseless, can generate electricity when there is sun, and is environmentally friendly and safe; the disadvantage is that it may be affected by the weather, the power generation efficiency is low, and the power may only be enough for RV lighting or mobile phone charging.
How power consumption is estimated:
Based on the formula: power consumption = power × using time. Taking the air conditioner with the highest power as an example, if the air conditioner runs for 10 hours in summer, the energy required: 800W x 10h = 8kWh; 12V100AH battery for RV = 1.2kWh, 48V100AH battery = 4.8kWh.
How large a lithium battery you need to install in your RV depends on your own reality.
No matter how large the lithium battery is for RV applications, it is not enough. The air conditioner consumes a lot of electricity. Due to the hot summer weather, car owners want to drive the air conditioner 24 hours a day. An induction cooker also needs to be used for frying and stewing every day, and open fire is prohibited in most places, so an induction cooker has become the only choice. Other electrical appliances also need electricity, which requires the RV to install an inverter to convert DC lithium battery into alternating current, which has power loss in the conversion process.
If you are only planning a short-term trip and can recharge at any time, or if you just want to hang out in an RV camp, then a 12V200AH lithium battery is enough to meet your electricity needs, mainly supporting the interior lighting of the RV, refrigerator cooling and so on.
If you are in a place where there is no way to support electricity replenishment for a long time, then from 12V100AH, don't worry about fuel consumption, and install solar panels to supplement the missing power. Most car owners are eager to install several sets of lithium batteries and store 30 of electricity. If there is no electricity in the house, and daily things cannot do.
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12V 100ah LiFePO4 RV Battery structure:
Premium Class A brand new 3.2V LiFePO4 cell + smart BMS+ sturdy plastic ABS shell + LCD.
1.The comprehensive cost of a lead-acid battery is high:
Lead-acid battery charging speed is slow, generally needs 6-8 hours, has insufficient capacity, usually needs to be equipped with several sets of backup batteries, and the operating efficiency is not high, increasing the operating cost.
2.Frequent maintenance will increase daily workload: One of the biggest disadvantages of lead-acid batteries is the need for daily maintenance.
3.Potential pollution and safety risks:
Lead-acid battery has gas leakage or corrosion, which needs to be watered regularly, and the man-hour and material cost is very high.
4.The charging environment is restricted:
Lead-acid batteries need a charging room or a separate space and are prone to acid fog at work.