Bought an inferior battery for genset?
softdown
Solar Expert Posts: 3,844 ✭✭✭✭
Found the "right battery" for the genset at the "right price" half a year ago. Wondered why the genset struggles when starting. So I tested this new battery. It is not very good at all. Resistance is about 6 1/2. Good manufacturers don't sell batteries with resistance over 5. CCA only measured about 450 though it is a smaller "Prius sized" 12 volt battery. Shoot - my 2012 battery still puts out 400 CCA with resistance of 7 1/2.
Where did I find this "gem of a new battery"? At a salvage yard - it was labeled as new with a fresh manufacturing date of 4/21. Perhaps - but inferior components were clearly used. At $60 while Costco asks $80 - there was reason to be suspicious. Suspicions confirmed.
Or.....perhaps it is damaged from overcharging due to running the genset 24/7?
Where did I find this "gem of a new battery"? At a salvage yard - it was labeled as new with a fresh manufacturing date of 4/21. Perhaps - but inferior components were clearly used. At $60 while Costco asks $80 - there was reason to be suspicious. Suspicions confirmed.
Or.....perhaps it is damaged from overcharging due to running the genset 24/7?
First Bank:16 180 watt Grape Solar with FM80 controller and 3648 Inverter....Fullriver 8D AGM solar batteries. Second Bank/MacGyver Special: 10 165(?) watt BP Solar with Renogy MPPT 40A controller/ and Xantrex C-35 PWM controller/ and Morningstar PWM controller...Cotek 24V PSW inverter....forklift and diesel locomotive batteries
Comments
-
Throw a DMM on the battery and see what voltage it is charging at, check wiring and for solid/clean electrical connections, etc.... Things do go wrong sometimes.
-BillNear San Francisco California: 3.5kWatt Grid Tied Solar power system+small backup genset
Categories
- All Categories
- 220 Forum & Website
- 128 Solar Forum News and Announcements
- 1.3K Solar News, Reviews, & Product Announcements
- 189 Solar Information links & sources, event announcements
- 886 Solar Product Reviews & Opinions
- 254 Solar Skeptics, Hype, & Scams Corner
- 22.3K Solar Electric Power, Wind Power & Balance of System
- 3.5K General Solar Power Topics
- 6.7K Solar Beginners Corner
- 1K PV Installers Forum - NEC, Wiring, Installation
- 2K Advanced Solar Electric Technical Forum
- 5.5K Off Grid Solar & Battery Systems
- 424 Caravan, Recreational Vehicle, and Marine Power Systems
- 1.1K Grid Tie and Grid Interactive Systems
- 651 Solar Water Pumping
- 815 Wind Power Generation
- 621 Energy Use & Conservation
- 607 Discussion Forums/Café
- 301 In the Weeds--Member's Choice
- 74 Construction
- 124 New Battery Technologies
- 108 Old Battery Tech Discussions
- 3.8K Solar News - Automatic Feed
- 3.8K Solar Energy News RSS Feed