The TBB3 IKON by Celebrity rechargeable battery pack is compatible with all IKON by Celebrity powered models and one charge will allow between 50 and 100 cycles depending on the action and users weight. Always charge fully before first use, this should take around 4 hours. IKON Battery 1.8Ah Lithium Cell. Comes with a 2 year guarantee. NB. only compatible with IKON recliners.