guangzhou pmd technology co ltd
We are an innovative company dedicated to the research, development, production, and sales of solar street lights. Over the years, we have been committed to providing our customers with high-quality
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48V 100ah 200ah 5kwh 10kwh sodium ion sodium-ion lithium battery sodium-ion-battery batterie de power wall for ESS
Guangzhou PMD New Energy Co., Ltd. are a Professional Manufacturer of LiFePO4, Lithium Ion, Li-Polymer, Ni-MH Battery Packs and Accessories. After more than 10 years learning and exploration, we’ve grown to a company with complete R&D team and quality inspection system. We focus on battery solutions for Energy Storage System, Solar Street Lighting, Electric Vehicle, Telecom and UPS etc.
Q1: Can I get free sample?
A1: Generally we don't provide free sample, but we can return sample cost when the buyer plant a bulk order.
Q2: How should I pay?
A2: You can pay via T/T,L/C at sight, PayPal, Western Union, Cash etc., 100% T/T in advance for samples. For large quantities, 30% T/T in advance as soon as order confirmed and the balance before shipping via T/T or L/C etc. If you prefer other payment terms, please contact us freely.
Q3: What is delivery time if we place an order?
A3: It depends order quantities. Usually, we can deliver goods within 3 -5 working days for small orders, for more QTY. order, let's confirm when you place offical order.
Q4: Are your factory or trading company?
A4: We are proffesional lithium-ion rechargeable batteries manufacturer with our own factory and brand. We provide all kinds of OEM/ODM services for clients around globe.
Q5.What is your warranty?
A5: We offer 5 years warranty for all our battery pack.we ensure at least 6000 cycle life for the LiFePO4 battery pack, which means,after 6000@80% DOD,there will still around 60% capacityt left.You can use it for at least 5 years for normal 1 time charge and discharge everyday.
Q6.Can we put different LiFePO4 battery pack in parallel or series by ourself?
A6: Yes. The battery can be put in parallel or series by customers. But there are few tips we need to pay attention:
1> Make sure the voltage of each battery are same before put inparallel. If they are not same, charge them to the same rate;
2> Do not put discharged battery and undischarged battery in parallel. This may reduce the capacity of the whole battery pack; 3> Do not put the batteries in series.
4> If you are not professional in parallel batteries, please don't handle the battery by yourself. It may cause danger and hurt the cycle life of battery;