100% buy your battery from here ... I was about to buy a battery from autozone ... so happy I randomly called this place and came across Gerado and Latisse... I promise the two KINDEST souls you've ever met... not only they sell me a top of the line battery (Optima) -- I paid $134 cheaper than autozone... Highly highly recommend for buying battery from here they not only kind but experts. ALSO they tested my old battery and have better equipment than Autozone read more

C P Generators - Optima battery brand new - Auto Parts & Supplies Near Me - Fontana, California

Great customer service with a wide range of batteries that they sell. I bought 2 batteries one my wife's Rav 4 & the other for my VW beetle from them in the last few months and haven't had any issues so far. Their pricing is fair and they definitely will have the battery that you will need. read more

Super great customer service ! , I got my battery changed and replaced in 10 minutes ! These are the places you need to come to get a great honest deal for your car batteries and other needs. 5 stars ! read more

Great customer service. Brought in my thought to be defective alternator, they tested it and said it was good and sent me on my way. I came back to buy an alternator still thinking I have a defective alternator, this time asked to speak with the tech, he took the time to speak with. Me and hear me out, also gave me great advice. I will be back to buy my next alternator there. Highly recommend these guys. read more

Very helpful over the phone and in person. I called ahead to make sure they had the battery I needed. In person he explained some things about Optima batteries that I didn't know. He signed me up for the warranty and sent me on my way, at a price that beat the well known auto parts stores, enough to make the drive, but not so low that would cause questioning the legitimacy. read more

Need a battery! This is the place to go to!! I needed a battery for my RV! Reasonable prices and super nice people working there.

Great service always respect full and great staff great warranty prices and customer service

Gerardo and his staff were awesome. I needed a new battery for my car. Went to Honda and they told what a new battery would cost me. I said "no thank you". Was referred to C.P. Generator by a family member who had done business with him before. I pulled up to his shop, let him know what I needed. He checked his inventory right away. Said he had the battery I needed, gave me the price of a new battery with installation. Less than half of what Honda was going to charge me. Had one of his crew install it right outside the door where I had parked. I was out of there within a half hour. Very friendly and welcoming! Would refer anyone to them without any hesitation. Thank you Gerardo! read more

Been coming here for years for any family needs when it comes down to batteries and alternators and starters good people and very helpful quality work also read more

Went there for a new battery for my corvette they gave me a good deal I couldn't find anywhere else Great people definitely going back when I need battery's or alternator read more

Best place to get batteries, not only best prices I found but they hold there word for warranty, I have two odyssey battery's in my boat, one went bad after year and half and they didn't hesitate to make it right! read more

Best alternator and battery place in the IE!! They helped me out quick and will def be going back if I need anything in the future!!

Multigenerational family run business that treats everyone like one of their own. I've had multiple issues with the original alternator on my old bronco, and they had a replacement in stock and ready to go within minutes. Then, when I had an issue with the wiring harness, they had a solution within minutes and installed same day. Would never go anywhere else. read more

I have done business with this company 3 times and have nothing but good things to say about their pricing, workmanship and customer service. read more

This place is awesome . Family owned and operated . They have the best prices and are highly experienced . If you need batteries , starters or alternators , this is the place to go . Highly recommended ! read more

I absolutely recommend CP generators. Fast turnaround time, superb customer service and knowledgeable staff. They were patient and took the time to explain how they were going to do my custom request. As soon as you walk in you will feel welcomed. Everyone stands up to show their face and greet u with a friendly smile. read more

C P Generators - VW 6 volt generator converted to 12volt. This is to go on my @baremetalbus - Auto Parts & Supplies Near Me - Fontana, California

Best place to get your alternator! Highly recommended! 10/10 ! Amazing customer service and pricing as well! I drove all the way from LA just to come here because my mechanic highly recommended it and I was not disappointed! read more

This place is the Go To spot for anything alternator related!!! Working at a mechanic shop we're always looking for a reliable place to take alternators too to get rebuilt and this place never disappoints. They have great prices and impeccable service times and always greet me with a smile and warm hello. The staff here is always attentive and ready to help with any questions I have and are very patient when my boss has questions over the phone. If you need an automotive battery, alternator, or starters I would strongly recommend coming to this location. Great people, Great service, and above all Great Experience!! read more

Gerardo was a big help when we came to purchase a car battery. The battery was not only affordable but his customer service was outstanding. We called prior and spoke with latice and she the person who convinced us to come in as she was so helpful on the phone and she took the time to look for exactly what we needed. I recommend coming here to save money and get a quality product and customer service read more

C P Generators - Battery install - Auto Parts & Supplies Near Me - Fontana, California

They were very helpful and provided great customer service and great quality, definitely recommend !

Would tell me if they had parts in stock. Had to drive all the way there for them to tell me no.

After calling several locations including auto zone and o rielys each was trying to upcharged by 100$ or more walmart included finally ready to give up because our budget wouldn't allow 200$ battery transaction then my wife had the best idea to call c.p generator they hooked us up with a brand new battery with a VERY reasonable price for all your battery alternators ND starter needs I suggest you come to the place with fast friendly service depending on what you need in and out in less than 15 minutes read more

C P Generators - C.p Generator inc - Auto Parts & Supplies Near Me - Fontana, California

Excellent for car batteries ,starters and alternators . I've purchased all of these products and they worked as promised

These guys... & gals know what they're doing. They rebuild alternators & starters in house with a very wide variety of options for the low. Been getting batteries from here for 2 years now for both cars & I've never had to return. Right now I'm getting an odyssey battery with a high amp alternator for my 2012 Tahoe because i have a big sound system. Gerardo & Latisse are cool af and will work with you. Best deals for alternators, starters & batteries with warranties hands down read more

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Love this place, very family orientated and everyone there is very friendly and helpful . The old guy (owner 83yrs old)knows his stuff . Rebuilt my generator in my 1939 Chevy in less than 24 hours. I brought my regulator (cut out is what he called it for this year) and he rebuilt that also in 20 minutes just like new. read more

C P Generators - 1939 Chevy Generator and cut out combo...rebuilt like new - Auto Parts & Supplies Near Me - Fontana, California

The service and the quality could not be better. I brought my 1960 generator in on Monday and had the unit completely rebuilt, tested with my new solid state regulator, and in my hands via UPS on Tuesday afternoon. Looks great! I installed that same day and worked perfectly!! You cannot go wrong with C.P. Generator. Thank you Bill read more

C P Generators - Auto Parts & Supplies Near Me - Fontana, California

Great people and great quality at a fair price. I wish all businesses would be run like this. read more

I came across CP Generators when I was living in La & needed to upgraded my alternator on my boat for my sound system. Great customer service!!! I move to Corona 3 years ago & this year p/u a newer/bigger boat, im putting in a bigger sound system. I took my old alternator up there & they built me a new one in one day. Great job CP Generators & thanks again.. see you soon to p/u my new batteries. read more

C P Generators - My new alternator for my 2500 watts sound system.. - Auto Parts & Supplies Near Me - Fontana, California

Went today to get my starter checked. Found out my mechanic put a 6 volt alternator and my car needed a 12 volt. So had it converted to a 12 volt. Very professional and was told it would be ready in a couple of hours. Was done way before that. Thank you very much. Will recommend your business to everyone!!!! read more

Bought a one wire Alternator for my small block Chevy and couldn't be more satisfied. Awesome customer service and super friendly and helpful staff too. Did I mention their prices?! Yeah very affordable compared to other places. Over one year and still going strong!! read more

C P Generators - One wire Alternator for small block Chevy - Auto Parts & Supplies Near Me - Fontana, California

Just got back from cp generators for a couple rv batteries. Couldnt be more happy with the price on them . The staff was super helpful and very pleasant. Very refreshing to shop in a positive enviroment. Highly recomended Jasper read more

You can't find this type of service these days... Gerardo and techs to the Customer Service... After several hours hunting down the alternator I need at various junkyards and so called auto parts stores the team at CP was able to identify the origin of the part within minutes!!!!! WHAT?!!! Who does that? That was not it though, here's the kicker THEY REBUILT MY PART WITHIN HOURS! Not days or weeks, HOURS! For sure the place to find your STARTER, ALTERNATOR and Batteries! Thank you guys so much for the quick service! By the way the part I needed was from Australia these guys are amazing for sure 5 Stars all the way up! read more

C P Generators - K24 Alternator - Auto Parts & Supplies Near Me - Fontana, California

Special thanks to this place for helping me find the best battery for my car...their staff is super nice and friendly definitely recommending this place to family and friends. read more

Fantastic shop and staff. I needed an alternator for my 1986 Toyota Cressida and wasn't happy with my options from the usual chain places. I drive by this place all the time and decided to give it a shot and am completely happy with my experience. They laid out my options, prices, and explained in detail what they'd be doing and had better prices than anyone else. They built me a higher output alternator and had it ready within a couple of hours of them opening up for the day. I'll definitely be back for all my projects. read more

C P Generators - Auto Parts & Supplies Near Me - Fontana, California

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Decided to give this place a shot since the previous place I went to (MAS in Fontana between valley and citrus) fucked up my starter twice stating that they had changed parts and all. I gave Gerardo a call and explained my situation, I mentioned to him that I had taken my starter to oreillys and auto zone to get it tested and it kept passing. However my thoughts were still 99% sure it was the starter. He kept me in the loop with it even after hours saying that he will check it ASAP. Drove down there with it and was greeted by him and a tech, the tech took the starter to the back and within two minutes he said this starter is bad, "I told him how sure are you?" He said 100% took his word and installed my starter and no issues with it so far. read more

Needed a new alternator for my tractor and am glad I came here rather than the usual auto parts store. The service and knowledge are really great. I love to see a well run customer oriented family business do well. Gerardo and his team are top notch. read more

Great service and affordable options. Saved myself $400 by changing my alternator myself with one of their rebuilt ones.

They did a great job they were quick diagnostics were very precise and efficient gave us a great price better than other battery dealers and so I would recommend everyone to go to CP generators I'll give them five stars talk to Gerald Geraldo or oh girl and everything will be good straight like that read more

I needed my alternator re-re-rebuilt for my 2007 honda fit. It kept dying 3-6 months after each other. I suspected that my stereo was killing it because my poor alternator could not keep up the charging. After being rebuilt twice by another guy, I decided to take it to CP generator. They had done my starter so I trusted them with my alternator. When I described my problem with the alternator always dying, they right off the bat told me that my alternator was not strong enough. Other shops told me that my alternator pushes out 70 amps, but CP told me that it is 70 amps MAX and is only 35 amps at idle. My stereo is pushing 150 amps. Now I know why it was dying! So the guys at CP recommended that I rebuild it and make it high amp. Without hesitation, I said go right ahead! Few hours later, I have a brand new high amp alternator! They even put a lightweight pulley on it to aid in cooling. The family that runs CP generators are EXTREMELY knowledgeable and extremely friendly. Their amazing service, fast turn around time, and honesty behind their products have made me a customer for life! read more

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Very good customer service attentive very polite good prices and warranty would definitely come here and recommend it to my relatives and friend's for any alternator starter or battery needs C P GENERATORS got you read more