Biswaye (1) WA3525 20V 4.0Ah Lithium Battery - Replacement for WA3520 WA3575 WA3578 Batteries, Compatible with WG163 WG183 WG261 WG779 20V/40V/80V Lawn Mower Blower Trimmer Outdoor Cordless Tools

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• 4000mAh Extended Runtime: Biswaye 2-Pack 4.0Ah 20V MAX Replacement Battery WA3525 delivers 33% longer usage per charge than standard batteries. MaxLithium technology and 4.0Ah capacity ensure superior performance for 20V cordless tools like trimmers, blowers, lawn mowers, and chainsaws.
• Broad Voltage Compatibility: Works with 20V, 40V (dual 20V), and 80V (quad 20V) systems; supports cordless tools like models WG163, WG170, WG183, WG320, WG752, WG760, and WG261 for patio, lawn & garden equipment, and other power-intensive tasks.
• Direct OEM Replacement: Matches 20V MAX lithium battery specifications (models WA3525, WA3575, WA3578 WA3520, WA3674, WA3675); compatible with 18/20V MAX lithium battery chargers (WA3770, WA3742, WA3847) for seamless charging.
• Advanced Safety & Durability: Automatic overload cut-off protects against overcharge, overcurrent, overheat, overvoltage, overdischarge, and short circuits; Rugged housing with high-quality lithium cells ensures no memory effect and stable voltage output.
• Certified Reliability: FCC, RoHS, and CE certified for safety and performance. Need help? Click ''Contact Seller'' in ''Your Orders'' or visit our storefront's ''Ask a Question'' for instant support.