1 3

EVzero

Shark 48V 21Ah LG M29 Battery - Compact Electric Bicycle Battery (982Wh) + 3A Fast Charger

Shark 48V 21Ah LG M29 Battery - Compact Electric Bicycle Battery (982Wh) + 3A Fast Charger

2.199,00 zł
2.199,00 zł 2.199,00 zł
Sale Sold out
Taxes included. Shipping calculated at checkout.

Technical Specifications

Parameter Value
Nominal voltage 48V (46.8V)
Real pack capacity 21Ah
Stored energy 982Wh
Cell configuration 13S7P (91 cells per pack)
Cell model LG INR18650-M29 (CNC robot welded)
Maximum current draw (BMS) 40A
Maximum charging current 5A
Motor power compatibility From 250W to 2000W
Included charger parameters 54.6V 3A (Fast charging)
Connectors / Cables Output: XT60 (approx. 30cm cable) / Input: mini XLR
Casing / Mounting Shark Compact type (Height only 143 mm)
Production 100% Polish production

What the set includes (Package contents)

  • 1x Shark 48V 21Ah battery with LG M29 cells.

  • 1x 3A fast charger (54.6V) for efficient and safe cell charging.

  • 1x Dedicated mounting base with a cable ending in an XT60 connector (approx. 30cm).

  • Installation kit: 5 pcs. M5x20 mounting screws and 4 pcs. M5 rivet nuts.

  • Stabilizing elements: Special positioning and vibration-damping rubber inserts for the bike frame.

  • Set of keys: 2 pcs. for the mechanical anti-theft lock.

  • Documentation: User manual with warranty card and a nameplate sticker with confirmed production date.


Reliable quality and long range at an unbeatable price Are you looking for uncompromising performance, proven components, and a powerful range, but don't want to overpay? The Shark 48V 21Ah bottle-type battery is the perfect compromise. Offering almost 1 kWh of energy (982Wh), the pack is built in a 13S7P configuration using 91 original LG INR18650-M29 cells. This is a solution for those looking for an affordable yet extremely durable power source for daily city riding, trekking, and off-road recreation.

Proven LG M29 cells – Premium factory standard The LG M29 cells used in this model are components with an excellent, verified reputation. They are chosen for first installation by top drive manufacturers (e.g., for Bosch systems) and used in renowned European Li-Ion pack factories. This guarantees the highest manufacturing repeatability, voltage stability under load, and long lifespan without unexpected capacity drops.

Compact housing and improved stability Despite its high capacity of 21Ah, the battery maintains reduced dimensions – the housing height is only 143 mm (compared to 156 mm in versions based on 21700 cells). The low profile allows for easy installation in smaller and tighter bike frames. It also lowers the center of gravity of the entire bike, providing significantly better riding stability, more secure battery retention in the rail, and reduced stress on the mount over uneven terrain.

Wide application and advanced electronics The battery is compatible with motors from 250W to 2000W. It is fully compatible with popular Mid-Drive kits and geared and gearless motors (e.g., Tongsheng TSDZ2, Bafang BBSHD, Bolt 500W/2000W, Rapid S2100, or Nexun trekking kits). Maximum cell safety is ensured by the built-in BMS electronics from the reputable manufacturer JiaBaiDa, which protects the pack against overcharging, deep discharge, and short circuits.

The advantage of Polish production – Premium Standard The battery is 100% manufactured in Poland using advanced assembly technologies:

  • CNC robot welding – guarantees perfectly even, repeatable connections with identical clamping force, completely eliminating the risk of cell overheating.

  • Additional insulators on the positives – each section has dedicated protection against short circuits.

  • Robust wiring – reinforced mini XLR charging socket and universal XT60 current output (approx. 30 cm cable).

View full details