The more gadgets, the higher the price. I'm not sure of the details, but the principle is that adding other ingredients to the electrolyte or electrode material increases the energy density of the battery, i.e. under the same volume and the same weight, it can There is more electricity stored than before. It was rated at 8PM, but now everything is not marked at 10PM. The price is also much more expensive. It depends on the. If you have high requirements for battery life, it is recommended to spend more money to purchase lithium batteries, 40AH. Lithium manganese oxide monomer cost more than 50 yuan a year ago. It has sufficient capacity and is very inexpensive. -string 4840 plus a protection plate only costs more than 800 yuan. It is cheaper than a lead acid battery, but the battery will be old in the future. It's just that you won't be able to exchange it for a new one.She. if you use it normally for three or four years, the cost of replacing the old one with a new one will be charged~What does 48mAh battery mean? Do you mean 48MAH? There are no batteries this small. If you are talking about 48AH, just buy a dedicated charger for 45AH lead acid batteries. Otherwise, a 38 AH battery will do the trick. It just takes longer or two 20AH chargers are connected. parallel. It's not serious. If it's not too slow, just find a charger with a suitable voltage. If it is a lithium battery, a 48Ah battery can use a 15A charger, or a 25A charger, but lithium battery chargers are quite expensive. the current, the more expensive it is. It is recommended to buy a 10A one, which only lasts 5 hours~
Of course, it's a lithium battery! ! ! The advantages are:
1. Very long lifespan. The lifespan of long-life lead-acid batteries isapproximately 300 times, the maximum being 500 times. However, the lifespan of lithium iron. Phosphate batteries reach over 2,000 times, which is standard. After one charge (5 hour rate), they can be used up to 2,000 times. Lead-acid batteries of the same quality last “six months for new ones, six months for old ones and another six months for maintenance”, or 1 to 1.5 years at most. However, lithium iron phosphate batteries last 7 years. -8 years if used in the same conditions for life". In overall consideration, the performance-price ratio will be more than 5 times higher than that of lead acid batteries.
2. Its use is safe. The Lithium iron phosphate completely solves the safety risks of lithium cobalt oxide and lithium manganate will explode in a strong collision and endanger the lives of consumers poses a threat, and lithium batteries. iron phosphate se caare characterized by the fact that they will not explode even in the worst road accidents after rigorous safety tests.
3. It can charge and discharge quickly at a high current of 2C. Under a special charger, the battery can be fully charged in 40 minutes at 1.5C, and the starting current can reach 2C. currently do not have this performance.
4. High temperature resistance, the maximum value of lithium iron phosphate electric heating can reach 350℃-500℃, while lithium manganate and lithium cobalt oxide are only about 200℃.
5. With large capacity, the mileage of lithium iron phosphate batteries is 3 to 4 times that of lead acid batteries of the same quality. Its advantages allow electric bikes to travel on a single charge. of moderate weight. It can travel more than 100 kilometers. For office workers, it can be used for about a week withc a single charge. The lead-acid battery is equipped withProvided that the weight of the entire vehicle does not exceed the standard, the maximum capacity of an electric bicycle battery is 12Ah (the weight of a lead-acid battery has reached 13 kg at present, while the weight of a lithium iron phosphate battery (a battery of the same capacity weighs only 5 kg), and a maximum charge can travel about 50 km.
6. No memory effect. When rechargeable batteries are often fully charged and not fully discharged, the capacity quickly drops below the rated capacity. This phenomenon is called memory effect. Nickel metal hydride and nickel cadmium batteries have memory, but lithium iron phosphate batteries do not have this phenomenon. Regardless of the state the battery is in, it can be charged and used at any time, and there is no need to discharge it first. then charge it.
7. Small size and light weight. The volume of a lithium iron phosphate battery with the same specifications and capacity is 2/3 of the volume of a lead-acid battery, and the weight is 1/3. that of a lead-acid battery.
8. Green and environmentally friendly.
Although the price is high, it is still very cost-effective for long-term use·Haha