Substituting a LiFePO4 battery pack for another type of Li-ion battery pack should not present any problems to the controller as long as it is the same Voltage as the original battery pack. As far as the battery charger goes there are small differences between different types of Li-ion batteries so I would make sure that the existing battery charger charges at a Voltage that is recommended for the new LiFePO4 battery pack. The manufacturer or distributor of the LiFePO4 battery pack should have the charging specifications available for their batteries.
The LiFePO4 batteries that we sell have a built in battery management system (BMS) so they can be used with virtually any battery charger that is the correct Voltage for the battery pack. Other LiFePO4 batteries are different than ours though.
Hi. Specifically, I want to purchase an I-MAX T3 but they told me it gets 700 recharge cycles. The EcoReco says they get 2,000 cycles out of their LiFePO4 batteries. Each company's replacement batteries are quoted the same but obviously the EcoReco is the better value because I'd have to replace batteries less often. Is it possible to easily substitute a LiFePO4 for a Li-Ion or are there controller/charger issues that would need to be accounted for?