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Message: <blockquote data-quote="guywhofishes" data-source="post: 300283" data-attributes="member: 337">[MEDIA=youtube]COJr7OB23Hw[/MEDIA]check each battery on its own, across the neg and pos terminalsif you test across both batteries that are "daisy-chained" you'll be seeing the combine voltage (>24V) and that won't register on a typical 20V DC setting used on a DC settting of a DVM- - - Updated - - -<img src="https://www.off-grid-europe.com/media/wysiwyg/tutorial_images/DODdischargeVoltageLoad_logo_OGE.png" alt="" class="fr-fic fr-dii fr-draggable " style="" />- - - Updated - - -you might see < 12V after a day of trollingyou should see >13 V on both when the charger is charging themyou should see 12.3-12.7 after letting the batteries "rest" after turning off the charger - don't measure them immediatley - it takes a while for the chemistry to equalize and show you what's really goign on as far as stored charge- - - Updated - - -check and make sure your batteries are full of fluid - use distilled to top them off - tap/well water can "kill them" with salts/contaminants- - - Updated - - -Talons, xi5s, and some other units draw a parasitic charge if they're not disconnected during storagedumb- - - Updated - - -year five of my gels - amazing batteries - it appears they were worth it- - - Updated - - -this year for the first time I forgot to unpug the xi5 and it took two days to charge them because they were down to liek 10V this spring (stored outside)I know spending the winter outside, discharged, would have ruined a normal wet cell deep cycle battery- - - Updated - - -weird thing was that when I first hooked up the dual bank it showed "green" for both batteries - which wasn't atypical after a winter of storagewhat I didn't know is that they were so EFFED from spending the winter discharged that the current they were taking from the charger was so low/limited that the charger thought they were charged! I took the boat out and found the batteries had nothing. Got home, hooked up charger - and only after about two hours did the charger start showing "red" - indicating the batteries were fianlly drinking in the current. It took > 48 hrs to charge them. Yikes!</blockquote>

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