Li-ion Battery fits Worx, Wu137, Wu161, 12.0V, 2000mAh

Battery Fits Models:- Wu137, Wu161

Battery Part Numbers:- Wa3540

High quality parts and components are used to provide an extremely long and useful life. All our batteries are brand new, The battery is an equivalent battery to the manufacturers as shown below. They are made with premium Lithium Ion cells and are rated as shown in the specifications. Finding the correct battery for your device can be difficult. There are a huge range of models and part numbers and it can be confusing. Believe us when we say its easier to reach out to us first than it is to return the product later. Please confirm that you are selecting the correct battery with us if you are really not sure which battery you need. Finding the correct battery for your device can be difficult. There are a huge range of models and part numbers and it can be confusing. Believe us when we say its easier to reach out to us first than it is to return the product later. Please confirm that you are selecting the correct battery with us if you are really not sure which battery you need. We can always confirm fitment for you if you live chat us. It only takes a moment and it will save you time in the long run. If you are not sure how to locate the correct information on your device please contact us and we will identify the correct battery for you. The warranty is valid for a period of one year on all Cameron Sino products unless otherwise stated in the description. The warranty only covers the product against any manufacturing defect. What's the average life of a Lithium Ion or Lithium Polymer battery? Usually it is around 400 cycles for Lithium Ion and usually this is the same for Lithium Polymer. Slightly different is Nimh, It should last for around 500 cycles. (cycling a battery means to discharge and recharge.) Its not a common known fact that a cycle will still be used, even if only partially discharged then recharged. Its good practice to run the battery low and recharge when the battery reaches about 10% of its charge left. This will extend the life of the battery and maintain its capacity for charge. You are guaranteed a very high quality replacement battery with ISO 9001 certifications when you purchases a battery from us. The batteries here are designed to be as reliable and as safe as the original manufactured battery. Cameron Sino actually manufacture batteries for many original equipment companies. The only difference is that a different label that is installed. Most of the known fitments for this product can be seen in the information below. Special Remarks:-None at this timeIf you can confirm that all the details listed below match to your original battery before ordering this will avoid any costly wrong order returns. Please be aware that some models have more than one battery type available and the only way you can confirm the correct battery is to remove the original.Our battery may have a slightly different capacity rating to your original either to increase the runtime of the product or due to the cells still available for the manufacture of the product. The product will still fit and charge as long as your device and battery number is listed.