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parallelmeme posted on r/pchelp2w
https://www.amazon.com/Battery-BE750BB-Lead-Acid-Replacement-12Ah/dp/B003KWS822?pd_rd_w=anHou&content-id=amzn1.sym.051fa55f-7cb0-4a3d-8fe7-39f4522a4d40&pf_rd_p=051fa55f-7cb0-4a3d-8fe7-39f4522a4d40&pf_rd_r=DKHD3114ZPYES2N0TEFW&pd_rd_wg=P0Hpy&pd_rd_r=12d42e3d-4143-4364-9f43-f532ef52aff6&pd_rd_i=B003KWS822&psc=1&ref_=pd_basp_d_rpt_ba_s_9_t