Just replaced my Pebble 2 HR with a brand new Pebble 2 SE for £50 inc P&P! : r/pebble
Battery Li Po for Pebble 2 SE Watch Li Polymer Rechargeable Accumulator Replacement LSSP441522AE 3.7V 160mAh+Track Code|Replacement Batteries| - AliExpress
Pebble 2 review: Tries for fitness, but it's best as a low-key smartwatch - CNET
Pebble confirms Fitbit sale: Hardware is dead, software in maintenance mode | Ars Technica
Internals of a Pebble 2 HR for those wondering : r/pebble