Lab technicians and researchers, this FITHOOD replacement battery is exactly what you need to keep your RAININ pipettes running smoothly! It's fully compatible with RAININ EDP3, EDP3 Plus, and EDP3 Plus pipettes in the 20-200uL range, replacing part number 6107-040. The 800mAh capacity and 3.7V lithium-ion chemistry provide reliable power that matches OEM performance. The dimensions (48.5x30x8mm) are precision-matched to fit perfectly in your pipette housing. What's really important is that these batteries are RoHS approved, meaning no toxic materials, and they come with CE and ISO9001 certification for quality assurance. The one-month replacement or refund guarantee gives you peace of mind with your purchase. If you've ever had a pipette die in the middle of important experiments, you know how crucial having reliable backup batteries can be. These deliver consistent voltage output that ensures accurate pipetting performance batch after batch. The build quality feels solid, with proper terminals and secure construction that won't let you down. Whether you're stocking your lab supplies or need an urgent replacement, this battery delivers OEM-compatible performance without the high price tag. Just make sure to confirm your specific model before ordering, and their customer service is actually helpful if you need verification. For the price, having a reliable backup that keeps your precision instruments functioning properly is absolutely worth the investment for any serious laboratory.