Seesii 21V 4000mAh Original Rechargeable Battery, Compatible with All Tools, Impact Wrench, Mini Chainsaw, Pole Saw, Pruning Shears, Long-Lasting Battery Life, Safe and Fast Charging

21V 4000mAh Original Lithium Battery

• 【Original quality, safe and reliable】 Official genuine battery, strictly matches the circuit design of SeeSii equipment to avoid compatibility issues. Built-in intelligent protection chip, prevent overcharging/overdischarging/short circuit/overheating, and extend the life of the equipment.
• 【Large capacity and long-lasting battery life】 4000mAh high energy density, 30% longer use time than ordinary batteries, up to 1 hour. Suitable for high-intensity operation scenes, reducing the trouble of frequent battery replacement.
• 【Universal for all equipment】 Compatible with all 21V models of SeeSii equipment, such as SeeSii series electric saws, pruning shears, etc. One battery can handle all SeeSii tools, saving the cost of repeated purchases.
• 【Efficient fast charging technology】 Supports fast charging, more efficient with SeeSii original charger. Low self-discharge design, less power loss when idle, ready to use.
• 【Durable and environmentally friendly】 Lithium battery cycle life ≥500 times, lower long-term use cost. No memory effect, charge and use at any time, no need to fully discharge.