At present,there are a lot of alkaline battery manufacturers in China,many customers are hard to identify the diffrences of high quality alkaline battery and common alkaline battery.Especially big importers,battery wholeser have more trouble on this question,to worry about the alkaline batteries purchased storage performance,discharge performance,safety performance,warranty and etc.If purchase incorrectly can cause damage to the product,to adversely affect the customer;Some buyers purchased low alkaline battery in order to reduce the cost,but some buyers purchased big brand battery with high price in order to guarantee quality,such as Duracell,Energizer.In today’s increasingly fierce competition in the market,profit margins fell sharply;Many buyers will choose the lower price,but high quality products.This is equivalent to reduce procurement costs,improve the efficiency of enterprises,but also each responsible buyer will have to do for boss and customer.
Alkaline battery production industry in China for more than 20years,some chinese alkaline batteries manufactuers through the acquisition of equipment,recipes to improve,improvement and increase of production,training of technical innovation,technology,aotonomous product development ,their quality of alkaline batteries can reach the level of Duracell and Energizer,and even some of the performance is beyond.Here i briefly introduce the diffrence between Chinese high quality alkaline batteries and the general alkaline batteries:
1,Surface:High quality alkaline battery must be with aluminium foil,rather than PVC.
Look at the steel shell,high-quality steel shell clean and good gloss.
Storage stability:High quality alkaline battery’s shelf life will be 5 years.For general alkaline battery,only 1-2 years.After one year,the electrical performance of the high quality will decreased by 5-10%,whilie the nomal alkaline battery will dereased 10-20%.
Liquid leakage rate:high quality alkaline battery will be in the 20PPM;General alkaline battery will be around 300PPM.
For high quality alkaline battery,such as LR6 AA,weight should be 23gram-25gram.But for inferior alkaline battery LR6 AA,only less than 23gram.
Do you know why?Beacause the proportion of manganese ring inside alkaline battery is very large.High quality alkaline batteries should have three manganese ring.Some chinese manufacturers just put two manganese ring into in order to save costs.So the overall weight of the battery must be less than 23 grams,which will directly lead to the discharge performance is greatly reduced.
3,Discharge performance:For high quality alkaline battery,start voltage should be 1.55V-1.65V(Note:If you fine start voltage is more than 1.68V,do not be happy,maybe it is cheap carbon batteries,but with the lable of alkaline battery);Discharge time of high quality LR03 AAA alkaline battery should be up to 8.5hours(10 Ohm,24hours/days,End voltage:0.9V);LR6 AA should be up to 19hours(Same discharge condition).And over discharge to 0.6V without leak.High quality alkaline batteries can be used in the temperature from -10 degree to 60 degree.
4,Raw material and Production equipment: For high quality alkaline battery,raw material is very important.Such as Zinc powder(Belgium,Some area from China),diaphragm paper(Japan,Taiwan),Steel shell(Japan,some area from China).Cost is relatively high,but the purity is very high,it will reduce the self discharge rate.But also used seal leak proof and explosion proof,reduce the leakage to prevent explosion of alkaline battery.And high speed production equipment is import from Canada(Hoi Pa production line).Strictly produce according to the production precess,reduce the error of manual operation.
5,Certification:Excellent alkaline battery manufacturers are generally through the authority of certification,such as ROHS,CE.
At present,some alkaline batteries from China can reach Duracell,Energizer’s quality,and Duracell,Energizer,Panasonic also produce batteries with their brand in China.So if you can find a good alkaline battery manufacturer in China,Congratulations!