I will second a class 3 Bosch. I have one in a hilly city that absolutely rocks the steeps and has a great battery life. Going on 2 years strong and I've had zero battery issues. It rains a lot here but no problems with the Shimano drivetrain either, just regular maintenance.
Yellow top , my recommendation ; I do carry multiple lights on the taco .size 35
I ran a yellow top Optima in my Civic from 2009 up till this year. A hell of a run!
I have a Cube Stereo Hybrid pro (insert numbers here)
Priced about 3.5k retail, it's an absolute dream to ride. Quiet, huge battery (bosch power tube 800)
Optima battery. They handle the cold much better.
Mind you this throttle body is brand new.
I replaced the battery with an optima battery brand new I assume the high quality battery. If the battery was a problem would fix it but it did not and now I’m back to square one
DO NOT buy a red top Optima. They haven't been good or worth the price in like 15 yrs.
After 7 sets of battery drains, I installed a new set and left it on a shelf untouched for a week. Turned on and dead. Made a warranty claim with Bosch to which their lazy troubleshooting reply:
Let me start by apologizing on behalf of BOSCH for any inconvenience this has caused you. I performed a complete inspection: I 1st charged up your lithium battery. I then calibrated & tested unit with both alkaline & lithium batteries: PASSED. I know it’s an inconvience. But: Leaving any batteries in unit when not in use: ( Unit will drain all battery types )—( Unit self discharges batteries when not in use ) --That is why Bosch put in manual tom remove batteries. PG# 21—Attached – ( they actually don’t say how long the “ extended period is “) That way it is not considerd a factory defect. Other than that: unit is operating to all Manufacurers Specification & Tolerances. Best regards,
-Well I'm never buying another Bosch product again with customer service like that. Pissed that I bought this expensive paperweight. What product in today's world drains batteries when not in use? Clearly flawed engineering they are hiding and do not value the end users. A recall is in order.
I switched to Bosch after that. that failed after 2.5 years, just under warranty. so it can happen with any company. some batches might have good quality some do not.
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