Efficient Power Storage Solution: The 29.4V 7S Power Wall Project is a versatile and reliable power storage solution designed for a variety of applications. Whether you're looking to store solar panel energy for home use or power an Ebike, this battery pack is engineered to deliver consistent performance. With a range of capacities from 3AH to 6AH, you can tailor your power storage to your specific needs. Versatile and User-Friendly Design: The 7S Power Wall Project is not power; it's also about convenience. The sleek design of battery pack makes it easy to integrate into your existing systems, while construction ensures portability. The PCB boards and components are available as separate parts, allowing for customization and easy maintenance. The clear markings on circuit board and plastic battery box make installation straightforward, ensuring that even novice users can set up their power storage system with ease. Reliable and Safe Performance: Safety is when it comes to power storage, and 29.4V 7S Power Wall Project does not disappoint. The inclusion of a 20A ensures that your batteries are protected from overcurrent, overheating, and other potential hazards. The battery pack is designed to be used with a 29.4V charger, and recommended charging current is capped at 2A per layer to prevent overheating. The product is also equipped with insulation features to prevent short circuits, ensuring a safe and reliable power source for your solar panel or Ebike applications. 75 20A ; Weight: 85g; Size:172 x 88 x 25mm; Voltage: 29.4V; Electricity : 20A; Direction for use: 1. Check whether product is in good condition before use. 2. Put it in battery and use it when fully . Matters needing attention: Take a 3000 mA battery for example, the 7S 1P battery holder full of batteries the capacity is 3ah, 7S 2P is 6ah. and you can stack number of battery holders according to your actual needs. We've got , 20A versions. The have functions of charge and discharge protection, discharge current protection, temperature protection, voltage equilibrium, and balance impulse. The 7S requires a 29.4v charger. Do not use it on metal table top, pay attention to insulation and do not short circuit. The charging current of each layer is not recommended to exceed 2a, otherwise battery may generate heat (for example, if there is only one layer, choose 2a charger, and if there are two layers, choose 4a charger). The direction of battery installation is subject to mark on cirucit boardnot mark on plastic battery box. Don't connect power supply with wrong positive and negative, there are signs on circuit board, pay attention to observation. Product single circuit board option, excluding battery in photo. The list price is price of a circuit board or a battery holder . If you use a solar panel to charge battery, you need to bring your own voltage control module. If output voltage of solar panel is too low, you need to increase boost module. If output voltage of solar panel is too high, you need to increase buck module. For specific questions, you can contact our store customer service. Color: As Shown Material: PCB Package Contents: 1 * 7s 20A Protection Board Only above package content, other products are not included. Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.