# Best replacement e-bike batteries Source: https://pedalandvolt.co.uk/best/best-ebike-replacement-batteries Publisher: Pedal and Volt. Picks are based on what the Amazon listings state, not on hands-on testing. Method: https://pedalandvolt.co.uk/how-we-pick A replacement battery has to match your bike before anything else. Voltage must be the same as the original (36 V or 48 V), the mount must match the frame (Hailong down tube, Silverfish seat tube or rear rack) and the discharge connector must suit your controller. Capacity in amp hours then decides range: more Ah means more distance, but only if the battery's maximum current suits your controller. Measure your old battery and compare the stated size in mm before ordering. Certification marks such as CE, UKCA and UN 38.3 on the listing tell you what the seller claims; ask for the paperwork if it matters to you. Buy a charger matched to the pack. This guide compares seven batteries on those points, using only what each listing states. ## Products ### 1. Hailong 48V 13Ah Lithium E-Bike Battery, Up to 1000 Cycles,UKCA/CE Certified, Smart BMS Protection,for Electric Bikes and Scooters and 250W 500W 750W 1000W Motor Voltage: 48 V; Capacity: 13 Ah; Mount: Hailong; Connector: Not stated; Certification stated: UKCA, CE; Size: 36 x 9 x 11 cm A 48 V 13 Ah Hailong-style down tube battery with a UK 3-pin charger and stated UKCA and CE marks. A direct swap for Hailong mounts. In its favour: - The only listing here that states UKCA certification. - Comes with a UK 3-pin plug charger and a 12-month warranty. - Rated up to 1,000 cycles, according to the maker. Good to know: - Discharge connector type is not stated, so check it matches your controller. - The spec table lists 5.1 kg, which is heavy for a 13 Ah pack. ### 2. 36V 15.6Ah Ebike Battery, XH370-10J Sliver Fish Battery with Charger, Electric Bike Removable Battery Replacement, UK Warehouse Voltage: 36 V; Capacity: 15.6 Ah; Mount: Silverfish (XH370-10J); Connector: 2-pin discharge, XLR charge port; Certification stated: CE, RoHS, UN38.3; Size: 39 x 11 x 7.5 cm A 36 V 15.6 Ah Silverfish-style battery in an aluminium case for bikes using the XH370-10J pack. Clear connector details. In its favour: - Connector details are clear: 2-pin discharge and XLR charging port. - The listing states CE, RoHS and UN38.3 certification. - Suits 36 V motors of 250 W to 500 W with a 30 A BMS, according to the listing. Good to know: - Only fits bikes built for the Silverfish XH370-10J shape. - Cycle life and warranty length are not stated in the listing. ### 3. Ebike Battery Pack 36V 14Ah 504Wh Lithium-ion Replacement Removable Batteries for F.lli Schiano E-Fully/Braver/E-Voke ESKUTE Reention EEL Mini with BMS & Charger Voltage: 36 V; Capacity: 14 Ah (504 Wh); Mount: Integrated tube, F.lli Schiano, ESKUTE; Connector: 2-pin discharge, DC 2.1 charge; Certification stated: CE, RoHS, UN38.3; Size: 43 x 6.4 x 7.4 cm A 36 V 14 Ah pack for F.lli Schiano, ESKUTE and similar bikes, with stated cycle life and certification. In its favour: - The maker states over 78% capacity after 1,000 cycles. - CE, RoHS and UN38.3 certificates are claimed in the listing. - Compatible bikes are named, and it states it does not fit the Carrera Impel. Good to know: - The 15 A BMS limits it to lower-current controllers. - Fits only bikes built for this specific tube shape. ### 4. Ebike battery 36V 14h / 48V 10.5Ah Electric Bicycle Batteries Rear Rack Battery for E-Bike Mifa, Rehberg, Zündapp, Ansmann System (36V 14Ah) Voltage: 36 V; Capacity: 14 Ah; Mount: Rear rack (Mifa, Zündapp, Ansmann); Connector: Not stated; Certification stated: CE, RoHS, UN38.3; Size: 317 mm long A rear rack battery for Mifa, Rehberg, Zündapp and Ansmann system bikes. Fits rack-mounted designs that down tube packs cannot. In its favour: - Named fit for Mifa, Rehberg, Zündapp and Ansmann rear rack systems. - CE, RoHS and UN38.3 certification is stated. - Suitable for 36 V motors of 250 W to 500 W with a 20 A BMS, per the listing. Good to know: - The discharge connector type is not given in the listing. - The size is listed as a string of figures that is hard to read, so compare carefully. ### 5. X-go 36V 13Ah Ebike Battery, Hailong 1 4Pin Lithium Battery Pack for Motor, Electric Bicycle Replacement Battery Compatible with Bafang Voilamart, with Anderson and XT60 Adapter Cable Voltage: 36 V; Capacity: 13 Ah; Mount: Hailong 4-pin down tube; Connector: Anderson plus XT60 adapter; Certification stated: Not stated; Size: 36.5 x 9 x 9.2 cm A 36 V 13 Ah Hailong down tube battery with both Anderson and XT60 connectors in the box. Good for conversion kit owners. In its favour: - Both Anderson and XT60 connections are included, which avoids extra wiring. - A 4-pin base plate, lock and keys come with it. - Built from 50 cells of 2,600 mAh with a 25 A BMS, according to X-go. Good to know: - No certification marks such as CE or UN38.3 are stated. - Charging takes around 6.5 hours with the supplied charger. ### 6. R TEAM Ebike Battery 48v 20AH with 3A Charger, USB Port,Built in Samsung 50GB Cells,Lithium Electric Bike Battery for Rear or Front 30A 17A Controller Motor (Bafang, AW, KT most ebike conversion kit) Voltage: 48 V; Capacity: 20 Ah; Mount: Not stated; Connector: Anderson; Certification stated: Not stated; Size: 36.5 x 9 x 12.7 cm A high-capacity 48 V 20 Ah pack with Samsung 50GB cells and a 3 A charger. Aimed at conversion kits with Bafang, AW or KT controllers. In its favour: - 20 Ah is the largest capacity in this guide. - Samsung 50GB cells are named, plus a 30 A BMS and 3 A charger. - The seller says opening the case does not void the 1-year warranty. Good to know: - Mount type and certification are not stated. - Battery capacity in the spec table conflicts with the title. ### 7. Ebike Battery 36V 48V 10Ah 13Ah Hailong Electric Bike Lithium-ion Battery Fits JASION EB3, Fafrees, Mifa, VAUN, Zündapp E-Bikes, Compatible with Bafang & Tongsheng Motors (36V 13Ah) Voltage: 36 V; Capacity: 13 Ah; Mount: Hailong 4-pin down tube; Connector: Motor output cable included; Certification stated: Not stated; Size: 36 x 9 x 9 cm A 36 V 13 Ah Hailong pack that names JASION EB3, Fafrees, Mifa, VAUN and Zündapp bikes, and Bafang or Tongsheng motors. In its favour: - Lists compatible bike brands and motor makers by name. - Clearly states it does not fit Bosch, Shimano or Yamaha systems. - 30 A BMS, base plate, two keys and a motor output cable are included. Good to know: - No certification marks such as CE or UN38.3 are stated. - Exact connector type on the output cable is not named. As an Amazon Associate we earn from qualifying purchases.