Warranty 5 years CFP4820L5-B 48V20Ah lithium battery for E-bike

Warranty 5 years CFP4820L5-B 48V20Ah lithium battery for E-bike System 1

Warranty 5 years CFP4820L5-B 48V20Ah lithium battery for E-bike

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 1 pc

Supply Capability:: 100000 pc/month

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Packing and shipping

* Packing for each them. Standard weight and package for all shipping methods.
* Within 15 days after payment (based on actual quantity).
* DHL/FedEx/UPS fast express.
* Air/Sea Shipping. All are accepted.
* Tracking number will be sent to you after delivery and we will track the goods until you receive them.

Our service

1. Customers request or customized specification is acceptable.
2. 100% tested and inspected before packing.
3. Professional technician and engineer service.
4. Replacement or repair if it is under warranty.
5. Any inquiry about e-bike battery is welcomed, prompt response.
6. 24 hours /6 days/week online service.
7. Fast delivery and good shipping situation tracking .

Q: How can you guarantee the quality?

A: Quality is priority. We always attach great importance to quality control from the very beginning to the end of the production.Every product will be fully assembled and carefully tested before packing and shipping.

Q What is your company’s advantage?
A: We only supply high level quality of lithium battery and we have a strong design center, we also provide high quality after sale service.

Q: Do you accept OEM/ODM?
A: Yes, it is avaliable.

Q: What is your payment terms?
A: Sample payment through Paypal or Western Union, and mass order by T/T or L/C.

Q: How to repair the battery?: Pry open the adhesive or heat-sealed battery cover, reveal the maintenance-free battery rubber exhaust valve, carefully remove the exhaust valve, save, observe the battery internal situation. Add 0.1% to 0.5% of the electrolyte to the battery, just to the battery above the flow of electrolyte. At the same time, check whether the black impurities, if there are obvious black turbid impurities, indicating that the battery plate has been significantly softened, the possibility of battery repair is relatively small. If there is no black muddy impurities, need to wait 4 hours later, the water fully into the battery. If it is only because the deactivation time is long and cause the battery capacity to decline, do not need to carry out this step operation, should go directly to step 3 pre-charge.

Q: What is the difference between a maintenance-free battery and a conventional battery?: Different materials will produce a different phenomenon: the traditional battery in the course of the use of the phenomenon of liquid reduction occurs, because the antimony on the grid will pollute the sponge on the negative plate of pure lead, weakened after the full charge of the battery Electromotive force, resulting in excessive decomposition of water, a large number of oxygen and hydrogen, respectively, from the positive and negative plates to escape, so that the electrolyte reduced. With calcium instead of antimony, you can change the fully charged battery back electromotive force, reduce the overcharge current, liquid gasification rate decreases, thereby reducing the loss of electrolyte.

Q: What are the technical parameters of the battery?: The main performance parameters of the battery are the following: model; voltage; battery capacity; battery type, such as lead-acid batteries, alkaline batteries, lithium batteries, solar cells, fuel cells.

Q: How to determine the battery is good or bad?: Observe the battery electrolyte is turbid, turbidity that the battery positive plate softening. Observe the bottom of the battery whether there is sediment, if the plate off the battery capacity has been inadequate. Hand hit the battery two electrode piles If you hear an empty voice that pole pile and plate break. With a thick wire short-circuit positive and negative pile observation of the battery filling holes, such as the discovery of a bubble appears that the interval has been damaged.

Q: How to deal with waste batteries?: In addition to lead-acid batteries, all kinds of batteries are dissolved in sulfuric acid, and then by means of ion resin from the solution to extract a variety of metals, raw materials obtained in this way than the heat treatment method is pure, so the market price is higher, and the battery contains 95% of the various substances can be extracted.

Q: What are the advantages of maintenance-free batteries?: Maintenance-free battery using lead-calcium alloy grille, the amount of water generated when charging less water evaporation is low, with the shell with a sealed structure, the release of sulfuric acid gas is also very little, so with the above advantages.

Q: How should the battery be well maintained?: Electrolyte density This is to evaluate whether the battery charge is normal, whether the aging of the important parameters, the use of density meter or electrolyte density tester can be measured. If the electrolyte density is too small, you need to charge. And the electrolyte concentration is too thick or too thin to a certain extent, it means that such as the occurrence of plate vulcanization, short circuit or overcharge phenomenon, this time on the need for maintenance.

Q: How does the battery increase the voltage?: You can use the same battery in series, with 5 12v battery in series becomes 60v, if you need the current is relatively small, you can use DC-DC module to 12v voltage rise to 60v.

Q: Battery 200ah / 104 what does that mean?: This should be refers to 2V200AH battery 104, power with the 220V. Lead-acid battery nominal voltage is 2V / (each or monomer), but in fact will be higher than 2V, so the actual use and charging equipment for the matching will use 104, also useful 103, also useful 108 Only.

Q: How does battery activation work?: Always keep the battery surface clean. Found that the surface of dust and acid, it should be timely wipe, wipe can be wiped with soda water wipes wipe again, after rinse with water.

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