.. new battery for the barge

well after 9 years the second battery in the barge died...
8.9v is all it is giving (and it sits on a CTEK trickle charger when not out and about)
Its a Yuasa YTX14-BS and to replace it the cheapest I can find is $160 + shipping
Anyone got any ideas about using cheaper GEL type or AGM type no spill batteries for the barge?
(range in price from about $70 to $100) .. or do i go another Yuasa?
TIA
Smitty
8.9v is all it is giving (and it sits on a CTEK trickle charger when not out and about)
Its a Yuasa YTX14-BS and to replace it the cheapest I can find is $160 + shipping
Anyone got any ideas about using cheaper GEL type or AGM type no spill batteries for the barge?
(range in price from about $70 to $100) .. or do i go another Yuasa?
TIA
Smitty