Product Description
The Boston Sonata 5300 Custom 18650 Battery Packs Lithium-ion are a top choice for those seeking medical-grade cells with a 3.7v 7A 19Wh 5300mAh capacity. These packs offer the highest usable energy density, long cycle life, and unmatched safety features for a variety of applications, including Stationary Energy Storage, BEVs, PHEVs, LCVs, and NEVs.
Choose from 4 variants, available in packs of 10, 28, 56, or 84. Battery holders are also available for purchase separately. Please note that these packs are reclaimed, so the actual cell voltage may be lower than indicated on the label. These packs are sold for DIY and Second Life purposes, and all sales are final with no returns, exchanges, or refunds.
It is important to do your due diligence before purchasing, as we cannot offer replacements, exchanges, or refunds if you realize you lack the necessary tools or information for your specific build. New York residents should be aware of recent legislation regarding the sale and assembly of lithium-ion batteries. Safety is our top priority, and we urge all individuals working with DIY and second-life lithium-ion batteries to prioritize safety to avoid any harm to themselves, others, or property.
Usually ships within 2 days. 
