Lightweight, 10ah, Optimal Current, Premium Cells, USA Made! The Pocket Rocket S eBike Battery is built with the latest Samsung 50S 21700 cells. Bicycle Motor Works is a USA Made Company building quality products since 2014. Featuring New Upgrade Option: Active 100 Balance Bluetooth BMS Technology Monitor your eBike battery directly from your smartphone with the free 100 Balance app. View real-time metrics such as: - Voltage - Current Temperature - State of charge (SOC) Active balance technology keeps your battery cells evenly balanced — even if not charged to 100%. This extends battery life, optimizes performance, and ensures consistent power delivery under heavy load. Engineered for riders who want serious performance in a compact package, the Pocket Rocket is your ultimate plug-and-play power upgrade — delivering more speed, range, and torque for 48V systems. Pocket Rocket Highlights: * 52v = more power on a 48v system. Safe and simple power upgrade! * 10ah (MASSIVE CAPACITY!!!) * 45 amp continuous BMS * Small and Light (around 5 pounds!) * Awesome battery made of top quality components. * 14s2p – 28 Genuine First Grade Samsung 50S 21700 cells * Temperature Protected. * XT-90s lead wire connector. NO SPARKS! * XT60 lead for charger * Weight of Battery: Under 5 pounds * Size: 6X4X3 Inches * Life Span: 400-1000 charges * All Battery Packs are shipped in the order it is received. Please allow 5-10 days to ship. Tracking will be sent as soon as it ships. Contact us if you need assistance. More Highlights: 1. 52 volts – The ultimate secret weapon for your 48 volt system. Compatible with 48 volt motors and controllers – plug and play. You’ll enjoy more power while gaining more range. It’s win-win!! 2. 10 amp hours translates to 520 watt hours. 3. The more pedal assist (pedals assisting) – the longer the battery will last on a ride. 4. Our 14s 45amp continuous BMS with temperature protection will ensure stability within the battery pack and keep all 28 cells juiced up properly. 5. This 52v pack is built with a tight frame for better heat dissipation. Having too much empty air space actually acts as an insulator – trapping the heat inside the pack (think double-pane windows). Connections are made with solid Nickel AND Copper strips, spot welder to each cell. Each cell and each series is tested before assembly. The BMS will prevent over charging and will balance the cells after a full charge. It basically makes your battery as safe and as efficient as possible. much bigger than a Samsung 30q pack with almost 35% more capacity!! Please read the full description and ask any questions you may have before making a purchase. NOTE: Lithium ion batteries can be dangerous, please consult a professional if you are unsure. WARNING: - With all rechargeable batteries, please take great care when charging. Never, ever short out the battery in any way. Failure to safely use this battery can result in fire, explosions, destruction, loss of life, loss of marriage, bad burns and an upset stomach. - ONLY CHARGE THIS BATTERY IN A PLACE WHERE YOU WOULDN’T MIND STARTING A FIRE. NEVER LEAVE A CHARGING BATTERY HOME ALONE. Some people put their battery and charger in a BBQ grill with the lid on so that if anything bad happens it would be contained. There are also ammo-boxes and safe, metal boxes for charging battery packs. Basically, use your head. - Charge this pack ONLY with the appropriate lithium ion charger. If you aren’t sure which charger you should use please co tact us to verify. - Do not open or remove any part of this battery pack. Do not modify the pack in any way – including cutting wires, using connectors that are not compatible with the pack, hard-wiring the pack into a motor or controller, etc. ANY modification of this pack will void any and all warranty, either implied or expressed. - If this pack is damaged or gets wet do not use it. Danger of fire or thermal runaway of cells can occur, and this can be a life threatening issue. Dispose of a damaged or wet pack immediately by contacting your local hazardous waste disposal office. SHIPPING INFORMATION: All E-Bike Battery Packs are shipped in the order it is received. Please allow 5-10 days to ship. Tracking will be sent as soon as it ships. Contact us if you need assistance.