Amazon.com: AE Series CPS425SL 12V 5.5Ah UPS Battery - This is an AJC Brand Replacement : Electronics
Varley Lithium Li-5 12V 5.5Ah Battery 7162-0002
Battery SIP 12V/5.5Ah, 12N5,5-3B for Lambretta 125 LI 3°/LIS/DL/GP/150 LI 3°/LIS/SX/DL/GP/175 TV 3°/200 TV/SX/DL/GP 120x60x130 mm microvlies battery, maintenance free, sealed, pre-charged black | SIP-Scootershop